Image histogram inspector
See how tones and colors are distributed in your image. Export the complete channel counts and a luminance chart.
Accepted files: .png,.jpg,.jpeg,.webp. Choose one file. Up to 20 MiB in total.
Files stay in this browser. Use still PNG, JPEG or WebP images, up to 20 MiB per file, 40 MiB combined and 16 million decoded pixels combined. Outputs total at most 100 MiB. Processing stops after 30 seconds. Source metadata and color profiles are not copied. Up to 1,000,000 characters. Review the settings before running.
Your result
How to use Image histogram inspector
- Choose a still image.
- Choose whether to exclude fully transparent pixels.
- Inspect the histogram and download the chart, table or report.
Useful next steps
Every channel, every bin
The table and report contain 256 bins for red, green, blue, luminance and alpha. The chart displays luminance. Every included pixel contributes once to each distribution.
What the endpoints mean
Pixels at the minimum or maximum channel value are counted, but those counts cannot prove that the original scene was clipped. Luminance is computed from decoded encoded RGB.