Module utils

Utils for testing and debugging.

Structs

Diff

A difference between two images

Functions

describe_pixel_diffs

Gives a summary description of a list of pixel diffs for use in error messages.

gray_bench_image

Gray image to use in benchmarks. This is neither noise nor similar to natural images - it’s just a convenience method to produce an image that’s not constant.

load_image_or_panic

Loads image at given path, panicking on failure.

pixel_diff_summary

Human readable description of some of the pixels that differ between left and right, or None if all pixels match.

pixel_diffs

Lists pixels that differ between left and right images.

rgb_bench_image

RGB image to use in benchmarks. See comment on gray_bench_image.

significant_pixel_diff_summary

Human readable description of some of the pixels that differ significantly (according to provided function) between left and right, or None if all pixels match.