Module `crop`

Crop away unwanted pixels. Includes automatic detection of bounding rectangle. Currently does not support deep data and resolution levels.

Structs

CropResult Cropping an image fails if the image is fully transparent. Use or_crop_to_1x1_if_empty or or_none_if_empty to obtain a normal image again.

ApplyCroppedView Realize a cropped view of the original data, by actually removing the unwanted original pixels, reducing the memory consumption. Currently not supported for SpecificChannels.
Crop Crop some pixels ways when specifying a smaller rectangle
CropWhere Crop away unwanted pixels from the border if they match the specified rule.
GetBounds Something that has a two-dimensional rectangular shape
InspectSample Inspect the pixels in this image to determine where to crop some away

try_find_smaller_bounds Return the smallest bounding rectangle including all pixels that satisfy the predicate. Worst case: Fully transparent image, visits each pixel once. Best case: Fully opaque image, visits two pixels. Returns None if the image is fully transparent. Returns [(0,0), size] if the image is fully opaque. Designed to be cache-friendly linear search. Optimized for row-major image vectors.