4d-plugin-gd

Image manipulation based on libgd

Platform

carbon	cocoa	win32	win64

Version

Releases

2.0

Examples

Rotate + Animate

Brightness

Colorize

Contrast

Edge Detect

Emboss

Gaussian Blur

Grayscale

Mean Removal

Negate

Selective Blur

Smooth

Rotation

$path:=Get 4D folder(Current resources folder)

READ PICTURE FILE($path+"1.png";$image)

$pathDst:=Get 4D folder(Current resources folder)+"rotated"+Folder separator
CREATE FOLDER($pathDst;*)

For ($i;0;359)
$result:=GD Rotate ($image;$i)  //image is internally converted to PNG
WRITE PICTURE FILE($pathDst+String($i;"000")+".png";$result)
End for 

Animation

$path:=Get 4D folder(Current resources folder)+"rotated"+Folder separator

ARRAY PICTURE($images;0)

DOCUMENT LIST($path;$paths;Absolute path | Recursive parsing | Ignore invisible)

For ($i;1;Size of array($paths))
READ PICTURE FILE($paths{$i};$image)
CREATE THUMBNAIL($image;$image;128;128)
APPEND TO ARRAY($images;$image)
End for 

$delay:=1  //delay before next frame (in 1/100 seconds)

$result:=GD Animate ($images;$delay)  //frames are internally converted to GIF

WRITE PICTURE FILE(System folder(Desktop)+"sample.gif";$result)

Filter

The following filters are supported

IMG_FILTER_NEGATE 1
IMG_FILTER_GRAYSCALE 2
IMG_FILTER_EDGEDETECT 3
IMG_FILTER_EMBOSS 4
IMG_FILTER_GAUSSIAN_BLUR 5
IMG_FILTER_SELECTIVE_BLUR 6
IMG_FILTER_MEAN_REMOVAL 7
IMG_FILTER_SMOOTH 8
IMG_FILTER_CONTRAST 9
IMG_FILTER_BRIGHTNESS 10
IMG_FILTER_SCATTER 11
IMG_FILTER_PIXELATE 12
IMG_FILTER_COLORIZE 13

Filter parameters

0 params

• IMG_FILTER_NEGATE
• IMG_FILTER_GRAYSCALE
• IMG_FILTER_EDGEDETECT
• IMG_FILTER_EMBOSS
• IMG_FILTER_SELECTIVE_BLUR
• IMG_FILTER_MEAN_REMOVAL

1 param

• IMG_FILTER_SMOOTH (weight)
• IMG_FILTER_CONTRAST (contrast)
• IMG_FILTER_BRIGHTNESS (brightness)

2 params

• IMG_FILTER_SCATTER (sub, plus)
• IMG_FILTER_PIXELATE (block_size, mode)
• IMG_FILTER_GAUSSIAN_BLUR (radius, sigma)

4 params

• IMG_FILTER_COLORIZE (red, green, blue, alpha)