Transform

Crop

crop the given image by the given window. begin point is at top-left and

end point is at the lower-right of the image.

Example:

>>> # read an image
>>> source_image = Read('source.exr')
>>> # crop the source image
>>> crop(source_image, 0, 0, 500, 500)
>>> # save the cropped image as a new image on disk
>>> source_image.write('cropped.png')

Source	Cropped

type source_image:  Image param source_image:  source image to crop type x1:int param x1:X coordinate of beginning of the crop window type y1:int param y1:Y coordinate of beginning of the crop window type x2:int param x2:X coordinate of end of the crop window type y2:int param y2:Y coordinate of end of the crop window rtype:Image return:cropped image if crop process successful, otherwise source image

Crop by Data Window

corp the source image to its data window.

type source_image:  Read param source_image:  source image to crop rtype:Read return:cropped image if crop process successful, otherwise source image

Resize

resize the given image into the new width and height

Example:

>>> # read an image
>>> source_image = Read('source.exr')
>>> # resize the source image and store it in a new variable
>>> bar = resize(source_image, 1000, 500)
>>> # save the resize image as a new image on disk
>>> bar.write('resize.png')

type source_image:  Image param source_image:  source image to crop type width:int param width:width size type height:int param height:height size rtype:Image return:resize image if resize process successful, otherwise source image

Scale

scale the given image iby the scale value.

Example:

>>> # read an image
>>> source_image = Read('source.exr')
>>> # scale the source image and store it in a new variable
>>> bar = scale(source_image, 1.5)
>>> # save the scaled image as a new image on disk
>>> bar.write('scaled.png')

type source_image:  Image param source_image:  source image to crop type scale_value:  float param scale_value:  scale value rtype:Image return:scaled image if scale process successful, otherwise source image