Transform

Modifies an existing image by applying one or more transform operations.

Properties

Image path

Image file to read.

Output file

Path to save the transformed image to.

Transform

The details of the transform to apply to the image. Click Edit Transform to open the Transform Editor.

Timeout

Timeout in seconds.

Transform Editor

The transform editor is opened by clicking the Edit transform button in the Transform property.

• Original image (A)
  The preview image before applying any transform operations.
• Preview image (B)
  The preview image after applying transform operations.
• Load preview image (C)
  Loads a different image to use for the preview.
• Preview selected operation only (D)
  When this is checked, the image preview only applies the selected operation, as opposed to all active operations.
• Active operations (E)
  A list of all added operations is displayed here.
• Operation arguments (F)
  Shows the arguments required by the selected operation.
• Add button (G)
  Adds a new operation.
• Delete button (H)
  Deletes the selection operation.

Transform Operations

Colour

Operations used to adjust the colour of the image.

1. RandomThreshold
   Changes the value of individual pixels based on the intensity of each pixel compared to a random threshold. The result is a low-contrast, two color image.
2. FloodFill
   Flood-fill texture across pixels that match the color of the target pixel and are neighbors of the target pixel. Uses current fuzz setting when determining color match.
3. Gamma
   Gamma correct image.
4. Colorize
   Colorize image with the specified color, using specified percent alpha for red, green, and blue quantums"
5. Segment
   Segment (coalesce similar image components) by analyzing the histograms of the color components and identifying units that are homogeneous with the fuzzy c-means technique. Also uses QuantizeColorSpace and Verbose image attributes.
6. Threshold
   Threshold image.
7. Transparent
   Add alpha channel to image, setting pixels matching color to transparent.
8. Contrast
   Contrast image (enhance intensity differences in image)
9. CycleColormap
   Displaces an image's colormap by a given number of positions.
10. Equalize
    Applies a histogram equalization to the image.
11. Evaluate
    Apply an arithmetic or bitwise operator to the image pixel quantums.
12. HaldClut
    Apply a color lookup table (Hald CLUT) to the image.
13. Level
    Adjust the levels of the image by scaling the colors falling between specified white and black points to the full available quantum range.
14. Modulate
    Modulate percent hue, saturation, and brightness of an image.
15. Negate
    Negate colors in image.
16. Normalize
    Normalize image (increase contrast by normalizing the pixel values to span the full range of color values)
17. Opaque
    Changes any pixel that matches target with the color defined by fill.
18. AdaptiveThreshold
    Local adaptive threshold image. http://www.dai.ed.ac.uk/HIPR2/adpthrsh.htm"
19. CDL
    Applies the color decision list from the specified ASC CDL file.

Size

Operations which change the size of the image.

1. Sample
   Resize image by using pixel sampling algorithm to the specified percentage.
2. Scale
   Resize image by using simple ratio algorithm to the specified percentage.
3. Zoom
   Zoom image to specified size.
4. Magnify
   Double the size of the image.
5. Minify
   Half the size of the image.
6. Shave
   Shave pixels from image edges.
7. Trim
   Trim edges that are the background color from the image.
8. Chop
   Chop image (remove vertical and horizontal subregion of image)
9. Crop
   Crop image (subregion of original image)
10. ChopHorizontal
    Chop image (remove horizontal subregion of image)
11. ChopVertical
    Chop image (remove horizontal subregion of image)

Image Format

Operations used to change image format specific options.

1. SetDefine
   Sets a format-specific option.
2. AddProfile
   Adds the specified colour profile to the image.
3. SetComment
   Sets the comment text saved with the image.
4. SetQuality
   Sets the quality factor used by when compressing the image.
5. RemoveProfile
   Remove a named colour profile from the image.
6. RePage
   Resets the page property of this image.
7. Strip
   Strips an image of all profiles and comments.
8. ChromaBluePrimary
   Sets the chromaticity blue primary point.
9. ChromaGreenPrimary
   Sets the chromaticity green primary point.
10. ChromaRedPrimary
    Sets the chromaticity red primary point.
11. ChromaWhitePrimary
    Sets the chromaticity white primary point.

Special Effects

Operations for applying decorative effects to an image.

1. Composite
   Compose an image onto another at specified offset using the specified algorithm.
2. Border
   Border image (add border to image)
3. Raise
   Raise image (lighten or darken the edges of an image to give a 3-D raised effect)
4. Shade
   Shade image using distant light source.
5. Solarize
   Solarize image (similar to effect seen when exposing a photographic film to light during the development process)
6. Spread
   Spread pixels randomly within image by specified amount.
7. Stegano
   Add a digital watermark to the image (based on second image)
8. Stereo
   Create an image which appears in stereo when viewed with red-blue glasses (Red image on left, blue on right)
9. Swirl
   Swirl image (image pixels are rotated by degrees)
10. Texture
    Channel a texture on image background.
11. Tile
    Compose an image repeated across and down the image.
12. Wave
    Map image pixels to a sine wave.
13. Edge
    Edge image (highlight edges in image)
14. Emboss
    Emboss image (highlight edges with 3D effect)
15. Frame
    Frame image with the specified with, height, innerBevel and outerBevel.
16. Implode
    Implode image (special effect)
17. Lower
    Lower image (lighten or darken the edges of an image to give a 3-D lowered effect)
18. OilPaint
    Oilpaint image (image looks like oil painting)
19. Charcoal
    Charcoal effect image (looks like charcoal sketch)

Noise

Operations for adding and removing image noise.

1. ReduceNoise
   Reduce noise in image using a noise peak elimination filter.
2. Despeckle
   Despeckle image (reduce speckle noise)
3. AddNoise
   Add noise to the specified channel of the image with the specified noise type.

Transform

Operations for applying geometric transforms to an image.

1. Roll
   Roll image (rolls image vertically and horizontally)
2. Rotate
   Rotate image counter-clockwise by specified number of degrees.
3. Flip
   Flip image (reflect each scanline in the vertical direction)
4. Flop
   Flop image (reflect each scanline in the horizontal direction)
5. Shear
   Shear image (create parallelogram by sliding image by X or Y axis)

Blur

Operations that apply a blur effect to the image.

1. Sharpen
   Sharpen pixels in image.
2. Unsharpmask
   Replace image with a sharpened version of the original image using the unsharp mask algorithm.
3. Enhance
   Apply a filter to improve image quality.
4. GaussianBlur
   Gaussian blur image.
5. MedianFilter
   Filter image by replacing each pixel component with the median color in a circular neighborhood.
6. MotionBlur
   Motion blur image with specified blur factor.
7. Blur
   Blur image with specified blur factor and channel.

Annotate

Operations for adding text to an image.

1. TransformOrigin
   Origin of coordinate system to use when annotating with text or drawing.
2. TransformReset
   Reset transformation parameters to default.
3. TransformRotation
   Rotation to use when annotating with text or drawing.
4. TransformScale
   Scale to use when annotating with text or drawing.
5. TransformSkewX
   Skew to use in X axis when annotating with text or drawing.
6. TransformSkewY
   Skew to use in Y axis when annotating with text or drawing.
7. Annotate
   Renders text to the image using any of the above transforms.

Links

GraphicsMagick.org