ImageSharp

14802 Commits

38 Branches

49 Tags

238 MiB

Tree: a07bad3408

Commit Graph

Author	SHA1	Message	Date
James Jackson-South	0b685ab034	Fix convolution sampling for bounds smaller than the kernel radius KernelSamplingMap.CorrectBorder sliced the offset span by radius * kernelSize, so bounds narrower than the kernel radius threw ArgumentOutOfRangeException (GaussianBlur of a 130x8 region with sigma 10, for example), and bounds exactly equal to the radius let Bounce offsets escape the sampling range by folding an overshoot of a full extent to min - 1. Route bounds no larger than the radius through an exact per-mode correction that folds each offset into range: clamp for Repeat, periodic reflection for Mirror and Bounce, and true modulo for Wrap. The single-pass corrections are unchanged for larger bounds.	2 months ago

Author

SHA1

Message

Date

James Jackson-South

0b685ab034

Fix convolution sampling for bounds smaller than the kernel radius

KernelSamplingMap.CorrectBorder sliced the offset span by
radius * kernelSize, so bounds narrower than the kernel radius threw
ArgumentOutOfRangeException (GaussianBlur of a 130x8 region with
sigma 10, for example), and bounds exactly equal to the radius let
Bounce offsets escape the sampling range by folding an overshoot of a
full extent to min - 1.

Route bounds no larger than the radius through an exact per-mode
correction that folds each offset into range: clamp for Repeat,
periodic reflection for Mirror and Bounce, and true modulo for Wrap.
The single-pass corrections are unchanged for larger bounds.

2 months ago

1 Commits (a07bad340875fb9b19db0db9e5c0fd73256f317b)