Image Histogram Viewer
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Image Histogram
Inspect how red, green and blue values are distributed across a photo. View the sampled histogram and download the 256-bin channel counts as JSON.
- View separate RGB channel distributions
- Inspect 256 bins per channel
- Download the sampled histogram counts
Read the horizontal range
Lower channel values lie toward the dark end and higher values toward the bright end. Peaks indicate many sampled pixels with similar channel values.
Compare color channels
Different red, green and blue distributions can reveal a strong color cast. A channel histogram is not the same as a single luminance histogram.
Understand sampling limits
Analysis uses a reduced preview rather than every full-resolution pixel. Fine detail can therefore contribute differently from an exhaustive pixel count.
Use the graph alongside the photo
A histogram describes distribution, not composition. It cannot tell whether a bright region is intentional or whether the subject is properly exposed.