PHP 8.4.2 Released!

    Predefined Constants

    The constants below are defined by this extension, and will only be available when the extension has either been compiled into PHP or dynamically loaded at runtime.

    COLOR_* constants

    Colortype constants. These constants are mainly used with ImagickPixel.

    imagick::COLOR_BLACK (int)
    Black color
    imagick::COLOR_BLUE (int)
    Blue color
    imagick::COLOR_CYAN (int)
    Cyan color
    imagick::COLOR_GREEN (int)
    Green color
    imagick::COLOR_RED (int)
    Red color
    imagick::COLOR_YELLOW (int)
    Yellow color
    imagick::COLOR_MAGENTA (int)
    Magenta color
    imagick::COLOR_OPACITY (int)
    Color's opacity
    imagick::COLOR_ALPHA (int)
    Color's alpha
    imagick::COLOR_FUZZ (int)
    Color's fuzz
    DISPOSE_* constants

    Dispose type constants

    imagick::DISPOSE_UNRECOGNIZED (int)
    Unrecognized dispose type
    imagick::DISPOSE_UNDEFINED (int)
    Undefined dispose type
    imagick::DISPOSE_NONE (int)
    No dispose type defined
    imagick::DISPOSE_BACKGROUND (int)
    Dispose background
    imagick::DISPOSE_PREVIOUS (int)
    Dispose previous
    COMPOSITE_* constants
    imagick::COMPOSITE_DEFAULT (int)
    The default composite operator
    imagick::COMPOSITE_UNDEFINED (int)
    Undefined composite operator
    imagick::COMPOSITE_NO (int)
    No composite operator defined
    imagick::COMPOSITE_ADD (int)
    The result of image + image
    imagick::COMPOSITE_ATOP (int)
    The result is the same shape as image, with composite image obscuring image where the image shapes overlap
    imagick::COMPOSITE_BLEND (int)
    Blends the image
    imagick::COMPOSITE_BUMPMAP (int)
    The same as COMPOSITE_MULTIPLY, except the source is converted to grayscale first.
    imagick::COMPOSITE_CLEAR (int)
    Makes the target image transparent
    imagick::COMPOSITE_COLORBURN (int)
    Darkens the destination image to reflect the source image
    imagick::COMPOSITE_COLORDODGE (int)
    Brightens the destination image to reflect the source image
    imagick::COMPOSITE_COLORIZE (int)
    Colorizes the target image using the composite image
    imagick::COMPOSITE_COPYBLACK (int)
    Copies black from the source to target
    imagick::COMPOSITE_COPYBLUE (int)
    Copies blue from the source to target
    imagick::COMPOSITE_COPY (int)
    Copies the source image on the target image
    imagick::COMPOSITE_COPYCYAN (int)
    Copies cyan from the source to target
    imagick::COMPOSITE_COPYGREEN (int)
    Copies green from the source to target
    imagick::COMPOSITE_COPYMAGENTA (int)
    Copies magenta from the source to target
    imagick::COMPOSITE_COPYOPACITY (int)
    Copies opacity from the source to target
    imagick::COMPOSITE_COPYRED (int)
    Copies red from the source to target
    imagick::COMPOSITE_COPYYELLOW (int)
    Copies yellow from the source to target
    imagick::COMPOSITE_DARKEN (int)
    Darkens the target image
    imagick::COMPOSITE_DSTATOP (int)
    The part of the destination lying inside of the source is composited over the source and replaces the destination
    imagick::COMPOSITE_DST (int)
    The target is left untouched
    imagick::COMPOSITE_DSTIN (int)
    The parts inside the source replace the target
    imagick::COMPOSITE_DSTOUT (int)
    The parts outside the source replace the target
    imagick::COMPOSITE_DSTOVER (int)
    Target replaces the source
    imagick::COMPOSITE_DIFFERENCE (int)
    Subtracts the darker of the two constituent colors from the lighter
    imagick::COMPOSITE_DISPLACE (int)
    Shifts target image pixels as defined by the source
    imagick::COMPOSITE_DISSOLVE (int)
    Dissolves the source in to the target
    imagick::COMPOSITE_EXCLUSION (int)
    Produces an effect similar to that of imagick::COMPOSITE_DIFFERENCE, but appears as lower contrast
    imagick::COMPOSITE_HARDLIGHT (int)
    Multiplies or screens the colors, dependent on the source color value
    imagick::COMPOSITE_HUE (int)
    Modifies the hue of the target as defined by source
    imagick::COMPOSITE_IN (int)
    Composites source into the target
    imagick::COMPOSITE_LIGHTEN (int)
    Lightens the target as defined by source
    imagick::COMPOSITE_LUMINIZE (int)
    Luminizes the target as defined by source
    imagick::COMPOSITE_MINUS (int)
    Subtracts the source from the target
    imagick::COMPOSITE_MODULATE (int)
    Modulates the target brightness, saturation and hue as defined by source
    imagick::COMPOSITE_MULTIPLY (int)
    Multiplies the target to the source
    imagick::COMPOSITE_OUT (int)
    Composites outer parts of the source on the target
    imagick::COMPOSITE_OVER (int)
    Composites source over the target
    imagick::COMPOSITE_OVERLAY (int)
    Overlays the source on the target
    imagick::COMPOSITE_PLUS (int)
    Adds the source to the target
    imagick::COMPOSITE_REPLACE (int)
    Replaces the target with the source
    imagick::COMPOSITE_SATURATE (int)
    Saturates the target as defined by the source
    imagick::COMPOSITE_SCREEN (int)
    The source and destination are complemented and then multiplied and then replace the destination
    imagick::COMPOSITE_SOFTLIGHT (int)
    Darkens or lightens the colors, dependent on the source
    imagick::COMPOSITE_SRCATOP (int)
    The part of the source lying inside of the destination is composited onto the destination
    imagick::COMPOSITE_SRC (int)
    The source is copied to the destination
    imagick::COMPOSITE_SRCIN (int)
    The part of the source lying inside of the destination replaces the destination
    imagick::COMPOSITE_SRCOUT (int)
    The part of the source lying outside of the destination replaces the destination
    imagick::COMPOSITE_SRCOVER (int)
    The source replaces the destination
    imagick::COMPOSITE_SUBTRACT (int)
    Subtract the colors in the source image from the destination image
    imagick::COMPOSITE_THRESHOLD (int)
    The source is composited on the target as defined by source threshold
    imagick::COMPOSITE_XOR (int)
    The part of the source that lies outside of the destination is combined with the part of the destination that lies outside of the source
    MONTAGEMODE_* constants

    imagick::MONTAGEMODE_FRAME (int)
    imagick::MONTAGEMODE_UNFRAME (int)
    imagick::MONTAGEMODE_CONCATENATE (int)
    STYLE_* constants

    imagick::STYLE_NORMAL (int)
    imagick::STYLE_ITALIC (int)
    imagick::STYLE_OBLIQUE (int)
    imagick::STYLE_ANY (int)
    FILTER_* constants

    imagick::FILTER_UNDEFINED (int)
    imagick::FILTER_POINT (int)
    imagick::FILTER_BOX (int)
    imagick::FILTER_TRIANGLE (int)
    imagick::FILTER_HERMITE (int)
    imagick::FILTER_HANNING (int)
    imagick::FILTER_HAMMING (int)
    imagick::FILTER_BLACKMAN (int)
    imagick::FILTER_GAUSSIAN (int)
    imagick::FILTER_QUADRATIC (int)
    imagick::FILTER_CUBIC (int)
    imagick::FILTER_CATROM (int)
    imagick::FILTER_MITCHELL (int)
    imagick::FILTER_LANCZOS (int)
    imagick::FILTER_BESSEL (int)
    imagick::FILTER_SINC (int)
    IMGTYPE_* constants

    imagick::IMGTYPE_UNDEFINED (int)
    imagick::IMGTYPE_BILEVEL (int)
    imagick::IMGTYPE_GRAYSCALE (int)
    imagick::IMGTYPE_GRAYSCALEMATTE (int)
    imagick::IMGTYPE_PALETTE (int)
    imagick::IMGTYPE_PALETTEMATTE (int)
    imagick::IMGTYPE_TRUECOLOR (int)
    imagick::IMGTYPE_TRUECOLORMATTE (int)
    imagick::IMGTYPE_COLORSEPARATION (int)
    imagick::IMGTYPE_COLORSEPARATIONMATTE (int)
    imagick::IMGTYPE_OPTIMIZE (int)
    RESOLUTION_* constants

    imagick::RESOLUTION_UNDEFINED (int)
    imagick::RESOLUTION_PIXELSPERINCH (int)
    imagick::RESOLUTION_PIXELSPERCENTIMETER (int)
    COMPRESSION_* constants

    imagick::COMPRESSION_UNDEFINED (int)
    imagick::COMPRESSION_NO (int)
    imagick::COMPRESSION_BZIP (int)
    imagick::COMPRESSION_FAX (int)
    imagick::COMPRESSION_GROUP4 (int)
    imagick::COMPRESSION_JPEG (int)
    imagick::COMPRESSION_JPEG2000 (int)
    imagick::COMPRESSION_LOSSLESSJPEG (int)
    imagick::COMPRESSION_LZW (int)
    imagick::COMPRESSION_RLE (int)
    imagick::COMPRESSION_ZIP (int)
    imagick::COMPRESSION_DXT1 (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.4.0 or higher.
    imagick::COMPRESSION_DXT3 (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.4.0 or higher.
    imagick::COMPRESSION_DXT5 (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.4.0 or higher.
    PAINT_* constants

    imagick::PAINT_POINT (int)
    imagick::PAINT_REPLACE (int)
    imagick::PAINT_FLOODFILL (int)
    imagick::PAINT_FILLTOBORDER (int)
    imagick::PAINT_RESET (int)
    GRAVITY_* constants

    imagick::GRAVITY_NORTHWEST (int)
    imagick::GRAVITY_NORTH (int)
    imagick::GRAVITY_NORTHEAST (int)
    imagick::GRAVITY_WEST (int)
    imagick::GRAVITY_CENTER (int)
    imagick::GRAVITY_EAST (int)
    imagick::GRAVITY_SOUTHWEST (int)
    imagick::GRAVITY_SOUTH (int)
    imagick::GRAVITY_SOUTHEAST (int)
    STRETCH_* constants

    imagick::STRETCH_NORMAL (int)
    imagick::STRETCH_ULTRACONDENSED (int)
    imagick::STRETCH_CONDENSED (int)
    imagick::STRETCH_SEMICONDENSED (int)
    imagick::STRETCH_SEMIEXPANDED (int)
    imagick::STRETCH_EXPANDED (int)
    imagick::STRETCH_EXTRAEXPANDED (int)
    imagick::STRETCH_ULTRAEXPANDED (int)
    imagick::STRETCH_ANY (int)
    ALIGN_* constants

    imagick::ALIGN_UNDEFINED (int)
    imagick::ALIGN_LEFT (int)
    imagick::ALIGN_CENTER (int)
    imagick::ALIGN_RIGHT (int)
    DECORATION_* constants

    imagick::DECORATION_NO (int)
    imagick::DECORATION_UNDERLINE (int)
    imagick::DECORATION_OVERLINE (int)
    imagick::DECORATION_LINETROUGH (int)
    NOISE_* constants

    imagick::NOISE_UNIFORM (int)
    imagick::NOISE_GAUSSIAN (int)
    imagick::NOISE_MULTIPLICATIVEGAUSSIAN (int)
    imagick::NOISE_IMPULSE (int)
    imagick::NOISE_LAPLACIAN (int)
    imagick::NOISE_POISSON (int)
    imagick::NOISE_RANDOM (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.3.6 or higher.
    CHANNEL_* constants

    imagick::CHANNEL_UNDEFINED (int)
    imagick::CHANNEL_RED (int)
    imagick::CHANNEL_GRAY (int)
    imagick::CHANNEL_CYAN (int)
    imagick::CHANNEL_GREEN (int)
    imagick::CHANNEL_MAGENTA (int)
    imagick::CHANNEL_BLUE (int)
    imagick::CHANNEL_YELLOW (int)
    imagick::CHANNEL_ALPHA (int)
    imagick::CHANNEL_OPACITY (int)
    imagick::CHANNEL_MATTE (int)
    imagick::CHANNEL_BLACK (int)
    imagick::CHANNEL_INDEX (int)
    imagick::CHANNEL_ALL (int)
    imagick::CHANNEL_DEFAULT (int)
    METRIC_* constants

    imagick::METRIC_UNDEFINED (int)
    imagick::METRIC_MEANABSOLUTEERROR (int)
    imagick::METRIC_MEANSQUAREERROR (int)
    imagick::METRIC_PEAKABSOLUTEERROR (int)
    imagick::METRIC_PEAKSIGNALTONOISERATIO (int)
    imagick::METRIC_ROOTMEANSQUAREDERROR (int)
    PIXEL_* constants

    imagick::PIXEL_CHAR (int)
    imagick::PIXEL_DOUBLE (int)
    imagick::PIXEL_FLOAT (int)
    imagick::PIXEL_INTEGER (int)
    Only available for ImageMagick < 7.
    imagick::PIXEL_LONG (int)
    imagick::PIXEL_QUANTUM (int)
    imagick::PIXEL_SHORT (int)
    EVALUATE_* constants

    imagick::EVALUATE_UNDEFINED (int)
    imagick::EVALUATE_ADD (int)
    imagick::EVALUATE_AND (int)
    imagick::EVALUATE_DIVIDE (int)
    imagick::EVALUATE_LEFTSHIFT (int)
    imagick::EVALUATE_MAX (int)
    imagick::EVALUATE_MIN (int)
    imagick::EVALUATE_MULTIPLY (int)
    imagick::EVALUATE_OR (int)
    imagick::EVALUATE_RIGHTSHIFT (int)
    imagick::EVALUATE_SET (int)
    imagick::EVALUATE_SUBTRACT (int)
    imagick::EVALUATE_XOR (int)
    imagick::EVALUATE_POW (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.4.4 or higher.
    imagick::EVALUATE_LOG (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.4.4 or higher.
    imagick::EVALUATE_THRESHOLD (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.4.4 or higher.
    imagick::EVALUATE_THRESHOLDBLACK (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.4.4 or higher.
    imagick::EVALUATE_THRESHOLDWHITE (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.4.4 or higher.
    imagick::EVALUATE_GAUSSIANNOISE (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.4.4 or higher.
    imagick::EVALUATE_IMPULSENOISE (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.4.4 or higher.
    imagick::EVALUATE_LAPLACIANNOISE (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.4.4 or higher.
    imagick::EVALUATE_MULTIPLICATIVENOISE (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.4.4 or higher.
    imagick::EVALUATE_POISSONNOISE (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.4.4 or higher.
    imagick::EVALUATE_UNIFORMNOISE (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.4.4 or higher.
    imagick::EVALUATE_COSINE (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.4.4 or higher.
    imagick::EVALUATE_SINE (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.4.4 or higher.
    imagick::EVALUATE_ADDMODULUS (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.4.4 or higher.
    COLORSPACE_* constants

    imagick::COLORSPACE_UNDEFINED (int)
    imagick::COLORSPACE_RGB (int)
    imagick::COLORSPACE_GRAY (int)
    imagick::COLORSPACE_TRANSPARENT (int)
    imagick::COLORSPACE_OHTA (int)
    imagick::COLORSPACE_LAB (int)
    imagick::COLORSPACE_XYZ (int)
    imagick::COLORSPACE_YCBCR (int)
    imagick::COLORSPACE_YCC (int)
    imagick::COLORSPACE_YIQ (int)
    imagick::COLORSPACE_YPBPR (int)
    imagick::COLORSPACE_YUV (int)
    imagick::COLORSPACE_CMYK (int)
    imagick::COLORSPACE_SRGB (int)
    imagick::COLORSPACE_HSB (int)
    imagick::COLORSPACE_HSL (int)
    imagick::COLORSPACE_HWB (int)
    imagick::COLORSPACE_REC601LUMA (int)
    imagick::COLORSPACE_REC709LUMA (int)
    imagick::COLORSPACE_LOG (int)
    imagick::COLORSPACE_CMY (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.4.2 or higher.
    VIRTUALPIXELMETHOD_* constants

    imagick::VIRTUALPIXELMETHOD_UNDEFINED (int)
    imagick::VIRTUALPIXELMETHOD_BACKGROUND (int)
    imagick::VIRTUALPIXELMETHOD_CONSTANT (int)
    imagick::VIRTUALPIXELMETHOD_EDGE (int)
    imagick::VIRTUALPIXELMETHOD_MIRROR (int)
    imagick::VIRTUALPIXELMETHOD_TILE (int)
    imagick::VIRTUALPIXELMETHOD_TRANSPARENT (int)
    imagick::VIRTUALPIXELMETHOD_MASK (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.4.2 or higher.
    imagick::VIRTUALPIXELMETHOD_BLACK (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.4.2 or higher.
    imagick::VIRTUALPIXELMETHOD_GRAY (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.4.2 or higher.
    imagick::VIRTUALPIXELMETHOD_WHITE (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.4.2 or higher.
    imagick::VIRTUALPIXELMETHOD_HORIZONTALTILE (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.4.3 or higher.
    imagick::VIRTUALPIXELMETHOD_VERTICALTILE (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.4.3 or higher.
    PREVIEW_* constants

    imagick::PREVIEW_UNDEFINED (int)
    imagick::PREVIEW_ROTATE (int)
    imagick::PREVIEW_SHEAR (int)
    imagick::PREVIEW_ROLL (int)
    imagick::PREVIEW_HUE (int)
    imagick::PREVIEW_SATURATION (int)
    imagick::PREVIEW_BRIGHTNESS (int)
    imagick::PREVIEW_GAMMA (int)
    imagick::PREVIEW_SPIFF (int)
    imagick::PREVIEW_DULL (int)
    imagick::PREVIEW_GRAYSCALE (int)
    imagick::PREVIEW_QUANTIZE (int)
    imagick::PREVIEW_DESPECKLE (int)
    imagick::PREVIEW_REDUCENOISE (int)
    imagick::PREVIEW_ADDNOISE (int)
    imagick::PREVIEW_SHARPEN (int)
    imagick::PREVIEW_BLUR (int)
    imagick::PREVIEW_THRESHOLD (int)
    imagick::PREVIEW_EDGEDETECT (int)
    imagick::PREVIEW_SPREAD (int)
    imagick::PREVIEW_SOLARIZE (int)
    imagick::PREVIEW_SHADE (int)
    imagick::PREVIEW_RAISE (int)
    imagick::PREVIEW_SEGMENT (int)
    imagick::PREVIEW_SWIRL (int)
    imagick::PREVIEW_IMPLODE (int)
    imagick::PREVIEW_WAVE (int)
    imagick::PREVIEW_OILPAINT (int)
    imagick::PREVIEW_CHARCOALDRAWING (int)
    imagick::PREVIEW_JPEG (int)
    RENDERINGINTENT_* constants

    imagick::RENDERINGINTENT_UNDEFINED (int)
    imagick::RENDERINGINTENT_SATURATION (int)
    imagick::RENDERINGINTENT_PERCEPTUAL (int)
    imagick::RENDERINGINTENT_ABSOLUTE (int)
    imagick::RENDERINGINTENT_RELATIVE (int)
    INTERLACE_* constants

    imagick::INTERLACE_UNDEFINED (int)
    imagick::INTERLACE_NO (int)
    imagick::INTERLACE_LINE (int)
    imagick::INTERLACE_PLANE (int)
    imagick::INTERLACE_PARTITION (int)
    imagick::INTERLACE_GIF (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.3.4 or higher.
    imagick::INTERLACE_JPEG (int)
    imagick::INTERLACE_PNG (int)
    FILLRULE_* constants

    imagick::FILLRULE_UNDEFINED (int)
    imagick::FILLRULE_EVENODD (int)
    imagick::FILLRULE_NONZERO (int)
    PATHUNITS_* constants

    imagick::PATHUNITS_UNDEFINED (int)
    imagick::PATHUNITS_USERSPACE (int)
    imagick::PATHUNITS_USERSPACEONUSE (int)
    imagick::PATHUNITS_OBJECTBOUNDINGBOX (int)
    LINECAP_* constants

    imagick::LINECAP_UNDEFINED (int)
    imagick::LINECAP_BUTT (int)
    imagick::LINECAP_ROUND (int)
    imagick::LINECAP_SQUARE (int)
    LINEJOIN_* constants

    imagick::LINEJOIN_UNDEFINED (int)
    imagick::LINEJOIN_MITER (int)
    imagick::LINEJOIN_ROUND (int)
    imagick::LINEJOIN_BEVEL (int)
    RESOURCETYPE_* constants

    imagick::RESOURCETYPE_UNDEFINED (int)
    imagick::RESOURCETYPE_AREA (int)
    Set the maximum width * height of an image that can reside in the pixel cache memory.
    imagick::RESOURCETYPE_DISK (int)
    Set maximum amount of disk space in bytes permitted for use by the pixel cache.
    imagick::RESOURCETYPE_FILE (int)
    Set maximum number of open pixel cache files.
    imagick::RESOURCETYPE_MAP (int)
    Set maximum amount of memory map in bytes to allocate for the pixel cache.
    imagick::RESOURCETYPE_MEMORY (int)
    Set maximum amount of memory in bytes to allocate for the pixel cache from the heap.
    imagick::RESOURCETYPE_THREAD (int)
    Set maximum parallel threads. This constant is available if Imagick has been compiled against ImageMagick version 6.7.8 or higher.
    LAYERMETHOD_* constants

    imagick::LAYERMETHOD_UNDEFINED (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.2.9 or higher.
    imagick::LAYERMETHOD_COALESCE (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.2.9 or higher.
    imagick::LAYERMETHOD_COMPAREANY (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.2.9 or higher.
    imagick::LAYERMETHOD_COMPARECLEAR (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.2.9 or higher.
    imagick::LAYERMETHOD_COMPAREOVERLAY (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.2.9 or higher.
    imagick::LAYERMETHOD_DISPOSE (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.2.9 or higher.
    imagick::LAYERMETHOD_OPTIMIZE (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.2.9 or higher.
    imagick::LAYERMETHOD_OPTIMIZEPLUS (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.2.9 or higher.
    imagick::LAYERMETHOD_OPTIMIZEIMAGE (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.3.0 or higher.
    imagick::LAYERMETHOD_OPTIMIZETRANS (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.3.0 or higher.
    imagick::LAYERMETHOD_REMOVEDUPS (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.3.0 or higher.
    imagick::LAYERMETHOD_REMOVEZERO (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.3.0 or higher.
    imagick::LAYERMETHOD_COMPOSITE (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.3.0 or higher.
    imagick::LAYERMETHOD_MERGE (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.3.7 or higher.
    imagick::LAYERMETHOD_FLATTEN (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.3.7 or higher.
    imagick::LAYERMETHOD_MOSAIC (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.3.7 or higher.
    ORIENTATION_* constants

    imagick::ORIENTATION_UNDEFINED (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.3.0 or higher.
    imagick::ORIENTATION_TOPLEFT (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.3.0 or higher.
    imagick::ORIENTATION_TOPRIGHT (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.3.0 or higher.
    imagick::ORIENTATION_BOTTOMRIGHT (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.3.0 or higher.
    imagick::ORIENTATION_BOTTOMLEFT (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.3.0 or higher.
    imagick::ORIENTATION_LEFTTOP (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.3.0 or higher.
    imagick::ORIENTATION_RIGHTTOP (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.3.0 or higher.
    imagick::ORIENTATION_RIGHTBOTTOM (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.3.0 or higher.
    imagick::ORIENTATION_LEFTBOTTOM (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.3.0 or higher.
    DISTORTION_* constants

    imagick::DISTORTION_UNDEFINED (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.3.6 or higher.
    imagick::DISTORTION_AFFINE (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.3.6 or higher.
    imagick::DISTORTION_AFFINEPROJECTION (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.3.6 or higher.
    imagick::DISTORTION_ARC (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.3.6 or higher.
    imagick::DISTORTION_BILINEAR (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.3.6 or higher.
    imagick::DISTORTION_PERSPECTIVE (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.3.6 or higher.
    imagick::DISTORTION_PERSPECTIVEPROJECTION (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.3.6 or higher.
    imagick::DISTORTION_SCALEROTATETRANSLATE (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.3.6 or higher.
    imagick::DISTORTION_POLYNOMIAL (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.4.6 or higher.
    imagick::DISTORTION_POLAR (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.4.6 or higher.
    imagick::DISTORTION_DEPOLAR (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.4.6 or higher.
    imagick::DISTORTION_BARREL (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.4.6 or higher.
    imagick::DISTORTION_BARRELINVERSE (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.4.6 or higher.
    imagick::DISTORTION_SHEPARDS (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.4.6 or higher.
    imagick::DISTORTION_SENTINEL (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.4.6 or higher.
    ALPHACHANNEL_* constants

    imagick::ALPHACHANNEL_ACTIVATE (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.3.8 or higher.
    imagick::ALPHACHANNEL_DEACTIVATE (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.3.8 or higher.
    imagick::ALPHACHANNEL_RESET (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.3.8 or higher.
    imagick::ALPHACHANNEL_SET (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.3.8 or higher.
    imagick::ALPHACHANNEL_UNDEFINED (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.4.6 or higher.
    imagick::ALPHACHANNEL_COPY (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.4.6 or higher.
    imagick::ALPHACHANNEL_EXTRACT (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.4.6 or higher.
    imagick::ALPHACHANNEL_OPAQUE (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.4.6 or higher.
    imagick::ALPHACHANNEL_SHAPE (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.4.6 or higher.
    imagick::ALPHACHANNEL_TRANSPARENT (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.4.6 or higher.
    imagick::ALPHACHANNEL_BACKGROUND (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.5.3 or higher.
    imagick::ALPHACHANNEL_REMOVE (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.7.8 or higher.
    imagick::ALPHACHANNEL_ASSOCIATE (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.9.0 or higher.
    imagick::ALPHACHANNEL_DISSOCIATE (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.9.0 or higher.
    imagick::ALPHACHANNEL_ON (int)
    This constant is available if Imagick has been compiled against ImageMagick version 7.0.0 or higher.
    imagick::ALPHACHANNEL_OFF (int)
    This constant is available if Imagick has been compiled against ImageMagick version 7.0.0 or higher.
    imagick::ALPHACHANNEL_DISCRETE (int)
    This constant is available if Imagick has been compiled against ImageMagick version 7.0.0 or higher.
    SPARSECOLORMETHOD_* constants

    imagick::SPARSECOLORMETHOD_UNDEFINED (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.4.6 or higher.
    imagick::SPARSECOLORMETHOD_BARYCENTRIC (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.4.6 or higher.
    imagick::SPARSECOLORMETHOD_BILINEAR (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.4.6 or higher.
    imagick::SPARSECOLORMETHOD_POLYNOMIAL (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.4.6 or higher.
    imagick::SPARSECOLORMETHOD_SPEPARDS (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.4.6 or higher.
    imagick::SPARSECOLORMETHOD_VORONOI (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.4.6 or higher.
    FUNCTION_* constants

    imagick::FUNCTION_UNDEFINED (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.4.9 or higher.
    imagick::FUNCTION_POLYNOMIAL (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.4.9 or higher.
    imagick::FUNCTION_SINUSOID (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.4.9 or higher.
    INTERPOLATE_* constants

    imagick::INTERPOLATE_UNDEFINED (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.3.2 or higher.
    imagick::INTERPOLATE_AVERAGE (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.3.2 or higher.
    imagick::INTERPOLATE_BICUBIC (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.3.2 or higher.
    imagick::INTERPOLATE_BILINEAR (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.3.2 or higher.
    imagick::INTERPOLATE_FILTER (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.3.2 or higher.
    imagick::INTERPOLATE_INTEGER (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.3.2 or higher.
    imagick::INTERPOLATE_MESH (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.3.2 or higher.
    imagick::INTERPOLATE_NEARESTNEIGHBOR (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.3.2 or higher.
    imagick::INTERPOLATE_SPLINE (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.3.4 or higher.
    DITHERMETHOD_* constants

    imagick::DITHERMETHOD_UNDEFINED (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.4.6 or higher.
    imagick::DITHERMETHOD_NO (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.4.6 or higher.
    imagick::DITHERMETHOD_RIEMERSMA (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.4.6 or higher.
    imagick::DITHERMETHOD_FLOYDSTEINBERG (int)
    This constant is available if Imagick has been compiled against ImageMagick version 6.4.6 or higher.

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    User Contributed Notes 2 notes

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    2
    ferenczi dot krisztian at gmail dot com
    6 years ago
    The `COLOR_OPACITY` doesn't exist if you are using ImageMagick lib 7 or newer version!

    Here is the c source code:

    #if MagickLibVersion < 0x700
    IMAGICK_REGISTER_CONST_LONG("COLOR_OPACITY", PHP_IMAGICK_COLOR_OPACITY);
    #endif

    There isn't any information about it anywhere (or I didn't find it)! So, if you want to use it, use the 6 version of lib! You can see the current installed version of lib with this command:

    $ identify -version
    up
    0
    guy dot paddock at redbottledesign dot com
    7 years ago
    I believe the description for imagick::COMPOSITE_MINUS is incorrect. It states:

    "Subtracts the source from the target"

    But according to ImageMagick's documentation:

    "The original method name 'Minus' is a synonym for 'Minus_Dst' meaning 'minus the destination'"

    And defines "Minus_Dst" as:
    "Src - Dest"

    So the description of "imagick::COMPOSITE_MINUS" should be "Subtracts the target from the source"
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