DJ Mike's Tutorials: PHP Imagemagick Functions

Predefined Constants

Constant Types

• Align Constants
• Channel Constants
• Colorspace Constants
• Colortype Constants
• Composite Operator Constants
• Compression Constants
• Decoration Constants
• Dispose Type Constants
• Distortion Constants
• Evaluate Operator Constants
• Fillrule Constants
• Filter Constants
• Gravity Constants
• Image Type Constants
• Interlace Constants
• Layer Method Constants
• Linecap Constants
• Line Join Constants
• Metric Constants
• Montage Mode Constants
• Noise Constants
• Orientation Constants
• Paint Constants
• Pathunit Constants
• Pixel Constants
• Preview Constants
• Rendering Intent Constants
• Resolution Constants
• Resourcetype Constants
• Stretch Constants
• Style Constants
• Virtual Pixel Method Constants

Align constants

• imagick::ALIGN_UNDEFINED
• imagick::ALIGN_LEFT
• imagick::ALIGN_CENTER
• imagick::ALIGN_RIGHT

Channel constants

• imagick::CHANNEL_UNDEFINED
• imagick::CHANNEL_RED
• imagick::CHANNEL_GRAY
• imagick::CHANNEL_CYAN
• imagick::CHANNEL_GREEN
• imagick::CHANNEL_MAGENTA
• imagick::CHANNEL_BLUE
• imagick::CHANNEL_YELLOW
• imagick::CHANNEL_ALPHA
• imagick::CHANNEL_OPACITY
• imagick::CHANNEL_MATTE
• imagick::CHANNEL_BLACK
• imagick::CHANNEL_INDEX
• imagick::CHANNEL_ALL

Colorspace constants

1. imagick::COLORSPACE_UNDEFINED
2. imagick::COLORSPACE_RGB
3. imagick::COLORSPACE_GRAY
4. imagick::COLORSPACE_TRANSPARENT
5. imagick::COLORSPACE_OHTA
6. imagick::COLORSPACE_LAB
7. imagick::COLORSPACE_XYZ
8. imagick::COLORSPACE_YCBCR
9. imagick::COLORSPACE_YCC
10. imagick::COLORSPACE_YIQ
11. imagick::COLORSPACE_YPBPR
12. imagick::COLORSPACE_YUV
13. imagick::COLORSPACE_CMYK
14. imagick::COLORSPACE_SRGB
15. imagick::COLORSPACE_HSB
16. imagick::COLORSPACE_HSL
17. imagick::COLORSPACE_HWB
18. imagick::COLORSPACE_REC601LUMA
19. imagick::COLORSPACE_REC709LUMA
20. imagick::COLORSPACE_LOG

Colortype Constants

• imagick::COLOR_BLACK
• imagick::COLOR_BLUE
• imagick::COLOR_CYAN
• imagick::COLOR_GREEN
• imagick::COLOR_RED
• imagick::COLOR_YELLOW
• imagick::COLOR_MAGENTA
• imagick::COLOR_OPACITY
• imagick::COLOR_ALPHA
• imagick::COLOR_FUZZ

Composite Operator Constants

• imagick::COMPOSITE_ADD
  Deprecated
• imagick::COMPOSITE_ATOP
  Composites the inside of one layer with the other
• imagick::COMPOSITE_BLEND
• imagick::COMPOSITE_BUMPMAP
  The same as COMPOSITE_MULTIPLY, except the source is converted to greyscale first.
• imagick::COMPOSITE_CHANGEMASK
• imagick::COMPOSITE_CLEAR
  Both the color and the alpha of the destination are cleared. Neither the source nor the destination are used as input.
• imagick::COMPOSITE_COLORBURN
  Darkens the destination color to reflect the source color. Painting with white produces no change.
• imagick::COMPOSITE_COLORDODGE
  Brightens the destination color to reflect the source color. Painting with black produces no change.
• imagick::COMPOSITE_COLORIZE
• imagick::COMPOSITE_COPY
  Simply place the source on top of the destination.
• imagick::COMPOSITE_COPYBLACK
• imagick::COMPOSITE_COPYBLUE
• imagick::COMPOSITE_COPYCYAN
• imagick::COMPOSITE_COPYGREEN
• imagick::COMPOSITE_COPYMAGENTA
• imagick::COMPOSITE_COPYOPACITY
• imagick::COMPOSITE_COPYRED
• imagick::COMPOSITE_COPYYELLOW
• imagick::COMPOSITE_DARKEN
  Selects the darker of the destination and source colors. The destination is replaced with the source when the source is darker, otherwise it is left unchanged.
• imagick::COMPOSITE_DEFAULT
• imagick::COMPOSITE_DIFFERENCE
  Subtracts the darker of the two constituent colors from the lighter. Painting with white inverts the destination color. Painting with black produces no change.
• imagick::COMPOSITE_DISSOLVE
• imagick::COMPOSITE_DISPLACE
• imagick::COMPOSITE_DST
  The destination is left untouched.
• imagick::COMPOSITE_DSTATOP
  The part of the destination lying inside of the source is composited over the source and replaces the destination.
• imagick::COMPOSITE_DSTIN
  The part of the destination lying inside of the source replaces the destination.
• imagick::COMPOSITE_DSTOUT
  The part of the destination lying outside of the source replaces the destination.
• imagick::COMPOSITE_DSTOVER
  The destination is composited over the source and the result replaces the destination.
• imagick::COMPOSITE_DIVIDE
• imagick::COMPOSITE_EXCLUSION
  Produces an effect similar to that of 'difference', but appears as lower contrast. Painting with white inverts the destination color. Painting with black produces no change.
• imagick::COMPOSITE_HARDLIGHT
  Multiplies or screens the colors, dependent on the source color value. If the source color is lighter than 0.5, the destination is lightened as if it were screened. If the source color is darker than 0.5, the destination is darkened, as if it were multiplied. The degree of lightening or darkening is proportional to the difference between the source color and 0.5. If it is equal to 0.5 the destination is unchanged. Painting with pure black or white produces black or white.
• imagick::COMPOSITE_HUE
• imagick::COMPOSITE_IN
  Replaces the inside of one layer with another
• imagick::COMPOSITE_LIGHTEN
  Selects the lighter of the destination and source colors. The destination is replaced with the source when the source is lighter, otherwise it is left unchanged.
• imagick::COMPOSITE_LUMINIZE
• imagick::COMPOSITE_MINUS
  The source is subtracted to the destination and replaces the destination.
• imagick::COMPOSITE_MODULATE
• imagick::COMPOSITE_MULTIPLY
  The source is multiplied by the destination and replaces the destination. The resultant color is always at least as dark as either of the two constituent colors. Multiplying any color with black produces black. Multiplying any color with white leaves the original color unchanged.
• imagick::COMPOSITE_NONE
• imagick::COMPOSITE_OUT
  The part of the source lying outside of the destination replaces the destination.
• imagick::COMPOSITE_OVER
  Overlay one image over the next
• imagick::COMPOSITE_OVERLAY
  Multiplies or screens the colors, dependent on the destination color. Source colors overlay the destination whilst preserving its highlights and shadows. The destination color is not replaced, but is mixed with the source color to reflect the lightness or darkness of the destination.
• imagick::COMPOSITE_PLUS
  The source is added to the destination and replaces the destination.
• imagick::COMPOSITE_REPLACE
• imagick::COMPOSITE_SATURATE
• imagick::COMPOSITE_SOFTLIGHT
  Darkens or lightens the colors, dependent on the source color value. If the source color is lighter than 0.5, the destination is lightened. If the source color is darker than 0.5, the destination is darkened, as if it were burned in. The degree of darkening or lightening is proportional to the difference between the source color and 0.5. If it is equal to 0.5, the destination is unchanged. Painting with pure black or white produces a distinctly darker or lighter area, but does not result in pure black or white.
• imagick::COMPOSITE_SCREEN
  The source and destination are complemented and then multiplied and then replace the destination. The resultant color is always at least as light as either of the two constituent colors. Screening any color with white produces white. Screening any color with black leaves the original color unchanged.
• imagick::COMPOSITE_SRC
  The source is copied to the destination. The destination is not used as input.
• imagick::COMPOSITE_SRCATOP
• imagick::COMPOSITE_SRCIN
• imagick::COMPOSITE_SRCOUT
• imagick::COMPOSITE_SRCOVER
• imagick::COMPOSITE_SUBTRACT
  Deprecated
• imagick::COMPOSITE_XOR
  The part of the source that lies outside of the destination is combined with the part of the destination that lies outside the source.

Compression constants

• imagick::COMPRESSION_UNDEFINED
• imagick::COMPRESSION_NO
• imagick::COMPRESSION_BZIP
• imagick::COMPRESSION_FAX
• imagick::COMPRESSION_GROUP4
• imagick::COMPRESSION_JPEG
• imagick::COMPRESSION_JPEG2000
• imagick::COMPRESSION_LOSSLESSJPEG
• imagick::COMPRESSION_LZW
• imagick::COMPRESSION_RLE
• imagick::COMPRESSION_ZIP

Decoration constants

• imagick::DECORATION_NO
• imagick::DECORATION_UNDERLINE
• imagick::DECORATION_OVERLINE
• imagick::DECORATION_LINETROUGH

Dispose Type Constants

• imagick::DISPOSE_UNRECOGNIZED
• imagick::DISPOSE_UNRECOGNIZED
• imagick::DISPOSE_UNDEFINED
• imagick::DISPOSE_NONE
• imagick::DISPOSE_BACKGROUND
• imagick::DISPOSE_PREVIOUS

Distortion Constants (available if compiled against ImageMagick 6.3.6 or later)

• imagick::DISTORTION_UNDEFINED
• imagick::DISTORTION_AFFINE
• imagick::DISTORTION_AFFINEPROJECTION
• imagick::DISTORTION_ARC
• imagick::DISTORTION_BILINEAR
• imagick::DISTORTION_PERSPECTIVE
• imagick::DISTORTION_PERSPECTIVEPROJECTION
• imagick::DISTORTION_SCALEROTATETRANSLATE

Evaluate Operator Constants

• imagick::EVALUATE_UNDEFINED
• imagick::EVALUATE_ADD
• imagick::EVALUATE_AND
• imagick::EVALUATE_DIVIDE
• imagick::EVALUATE_LEFTSHIFT
• imagick::EVALUATE_MAX
• imagick::EVALUATE_MIN
• imagick::EVALUATE_MULTIPLY
• imagick::EVALUATE_OR
• imagick::EVALUATE_RIGHTSHIFT
• imagick::EVALUATE_SET
• imagick::EVALUATE_SUBTRACT
• imagick::EVALUATE_XOR

Fillrule constants

• imagick::FILLRULE_UNDEFINED
• imagick::FILLRULE_EVENODD
• imagick::FILLRULE_NONZERO

Filter Constants

• imagick::FILTER_UNDEFINED
• imagick::FILTER_POINT
• imagick::FILTER_BOX
• imagick::FILTER_TRIANGLE
• imagick::FILTER_HERMITE
• imagick::FILTER_HANNING
• imagick::FILTER_HAMMING
• imagick::FILTER_BLACKMAN
• imagick::FILTER_GAUSSIAN
• imagick::FILTER_QUADRATIC
• imagick::FILTER_CUBIC
• imagick::FILTER_CATROM
• imagick::FILTER_MITCHELL
• imagick::FILTER_LANCZOS
• imagick::FILTER_BESSEL
• imagick::FILTER_SINC

Gravity Constants

• imagick::GRAVITY_NORTHWEST
• imagick::GRAVITY_NORTH
• imagick::GRAVITY_NORTHEAST
• imagick::GRAVITY_WEST
• imagick::GRAVITY_CENTER
• imagick::GRAVITY_EAST
• imagick::GRAVITY_SOUTHWEST
• imagick::GRAVITY_SOUTH
• imagick::GRAVITY_SOUTHEAST

Image Type Constants

• imagick::IMGTYPE_UNDEFINED
• imagick::IMGTYPE_BILEVEL
• imagick::IMGTYPE_GRAYSCALE
• imagick::IMGTYPE_GRAYSCALEMATTE
• imagick::IMGTYPE_PALETTE
• imagick::IMGTYPE_PALETTEMATTE
• imagick::IMGTYPE_TRUECOLOR
• imagick::IMGTYPE_TRUECOLORMATTE
• imagick::IMGTYPE_COLORSEPARATION
• imagick::IMGTYPE_COLORSEPARATIONMATTE
• imagick::IMGTYPE_OPTIMIZE

Interlace Constants

• imagick::INTERLACE_UNDEFINED
• imagick::INTERLACE_NO
• imagick::INTERLACE_LINE
• imagick::INTERLACE_PLANE
• imagick::INTERLACE_PARTITION
• imagick::INTERLACE_JPEG
• imagick::INTERLACE_GIF
• imagick::INTERLACE_PNG

Layer Method Constants (available if compiled against ImageMagick 6.3.3 or later)

• magick::LAYERMETHOD_UNDEFINED
• imagick::LAYERMETHOD_COALESCE
• imagick::LAYERMETHOD_COMPAREANY
• imagick::LAYERMETHOD_COMPARECLEAR
• imagick::LAYERMETHOD_COMPAREOVERLAY
• imagick::LAYERMETHOD_DISPOSE
• imagick::LAYERMETHOD_OPTIMIZE
• imagick::LAYERMETHOD_OPTIMIZEIMAGE
• imagick::LAYERMETHOD_OPTIMIZEPLUS
• imagick::LAYERMETHOD_OPTIMIZETRANS
• imagick::LAYERMETHOD_REMOVEDUPS
• imagick::LAYERMETHOD_REMOVEZERO
• imagick::LAYERMETHOD_COMPOSITE

Linecap Constants

• imagick::LINECAP_UNDEFINED
• imagick::LINECAP_BUTT
• imagick::LINECAP_ROUND
• imagick::LINECAP_SQUARE

Line Join Constants

• imagick::LINEJOIN_UNDEFINED
• imagick::LINEJOIN_MITER
• imagick::LINEJOIN_ROUND
• imagick::LINEJOIN_BEVEL

Metric Constants

• imagick::METRIC_UNDEFINED
• imagick::METRIC_MEANABSOLUTEERROR
• imagick::METRIC_MEANSQUAREERROR
• imagick::METRIC_PEAKABSOLUTEERROR
• imagick::METRIC_PEAKSIGNALTONOISERATO
• imagick::METRIC_ROOTMEANSQUAREDERROR

Montage Mode Constants

• imagick::MONTAGEMODE_FRAME
• imagick::MONTAGEMODE_UNFRAME
• imagick::MONTAGEMODE_CONCATENATE

Noise Constants

• imagick::NOISE_UNIFORM
• imagick::NOISE_GAUSSIAN
• imagick::NOISE_MULTIPLICATIVEGAUSSIAN
• imagick::NOISE_IMPULSE
• imagick::NOISE_LAPLACIAN
• imagick::NOISE_POISSON

Orientation Constants (available if compiled against ImageMagick 6.3.4 or later)

• imagick::ORIENTATION_UNDEFINED
• imagick::ORIENTATION_TOPLEFT
• imagick::ORIENTATION_TOPRIGHT
• imagick::ORIENTATION_BOTTOMRIGHT
• imagick::ORIENTATION_BOTTOMLEFT
• imagick::ORIENTATION_LEFTTOP
• imagick::ORIENTATION_RIGHTTOP
• imagick::ORIENTATION_RIGHTBOTTOM
• imagick::ORIENTATION_LEFTBOTTOM

Paint Constants

• imagick::PAINT_POINT
• imagick::PAINT_REPLACE
• imagick::PAINT_FLOODFILL
• imagick::PAINT_FILLTOBORDER
• imagick::PAINT_RESET

Pathunit Constants

• imagick::PATHUNITS_UNDEFINED
• imagick::PATHUNITS_USERSPACE
• imagick::PATHUNITS_USERSPACEONUSE
• imagick::PATHUNITS_OBJECTBOUNDINGBOX

Pixel Constants

• imagick::PIXEL_CHAR
• imagick::PIXEL_DOUBLE
• imagick::PIXEL_FLOAT
• imagick::PIXEL_INTEGER
• imagick::PIXEL_LONG
• imagick::PIXEL_QUANTUM
• imagick::PIXEL_SHORT

Preview Constants

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

Rendering Intent Constants

• imagick::RENDERINGINTENT_UNDEFINED
• imagick::RENDERINGINTENT_SATURATION
• imagick::RENDERINGINTENT_PERCEPTUAL
• imagick::RENDERINGINTENT_ABSOLUTE
• imagick::RENDERINGINTENT_RELATIVE
  Interlace constants (imagick::INTERLACE_GIF, imagick::INTERLACE_JPEG, imagick::INTERLACE_PNG are only available if Imagick is compiled against Imagemagick 6.3.5 or newer)

Resolution Constants

• imagick::RESOLUTION_UNDEFINED
• imagick::RESOLUTION_PIXELSPERINCH
• imagick::RESOLUTION_PIXELSPERCENTIMETER

Resourcetype Constants

• imagick::RESOURCETYPE_UNDEFINED
• imagick::RESOURCETYPE_AREA
• imagick::RESOURCETYPE_DISK
• imagick::RESOURCETYPE_FILE
• imagick::RESOURCETYPE_MAP
• imagick::RESOURCETYPE_MEMORY

Stretch Constants

• imagick::STRETCH_NORMAL
• imagick::STRETCH_ULTRACONDENSED
• imagick::STRETCH_CONDENSED
• imagick::STRETCH_SEMICONDENSED
• imagick::STRETCH_SEMIEXPANDED
• imagick::STRETCH_EXPANDED
• imagick::STRETCH_EXTRAEXPANDED
• imagick::STRETCH_ULTRAEXPANDED
• imagick::STRETCH_ANY

Style Constants

• imagick::STYLE_NORMAL
• imagick::STYLE_ITALIC
• imagick::STYLE_OBLIQUE
• imagick::STYLE_ANY

Virtual Pixel Method Constants

• imagick::VIRTUALPIXELMETHOD_UNDEFINED
• imagick::VIRTUALPIXELMETHOD_BACKGROUND
• imagick::VIRTUALPIXELMETHOD_CONSTANT
• imagick::VIRTUALPIXELMETHOD_EDGE
• imagick::VIRTUALPIXELMETHOD_MIRROR
• imagick::VIRTUALPIXELMETHOD_TILE
• imagick::VIRTUALPIXELMETHOD_TRANSPARENT

Created by DJ Mike from Santa Barbara