Linux command
diffimg 命令
文本
复制后可按需替换文件名、目录或参数。
常用示例
Compute the difference
diffimg [image1.png] [image2.png] [diff.png]
Use it for visual regression tests
diffimg [expected.png] [actual.png] [report/diff.png]
说明
diffimg computes the per-pixel difference between two equally sized images and writes the result to a third file. Each output pixel encodes the delta between the corresponding pixels of the two inputs — identical areas appear black, changed areas light up. This makes it an easy drop-in for visual regression checks, before/after comparisons, and QA pipelines. Implementations vary — some are Python/PIL wrappers, some are Qt-based GUIs with a CLI front end, and some are Go/Rust rewrites. All agree on the basic three-argument signature and on support for PNG, JPEG, and GIF input.
FAQ
What is the diffimg command used for?
diffimg computes the per-pixel difference between two equally sized images and writes the result to a third file. Each output pixel encodes the delta between the corresponding pixels of the two inputs — identical areas appear black, changed areas light up. This makes it an easy drop-in for visual regression checks, before/after comparisons, and QA pipelines. Implementations vary — some are Python/PIL wrappers, some are Qt-based GUIs with a CLI front end, and some are Go/Rust rewrites. All agree on the basic three-argument signature and on support for PNG, JPEG, and GIF input.
How do I run a basic diffimg example?
Run `diffimg [image1.png] [image2.png] [diff.png]` in a terminal, then adjust file names, paths, flags, or remote targets for your system.
Where can I find more diffimg examples?
This page includes 2 examples for diffimg, plus related commands for nearby Linux tasks.