A new free plug-in for Google Chrome and Mozilla Firefox web browsers now lets the viewer look at most image’s histogram information whilst browsing. Image Histogram is an extension which allows the user to right-click on an image and view the histogram data. Histograms are useful for comparison between people’s images and for noting things like how far highlights and shadows are pushed in high-key and low-key images. Lastly, it gives a graphical idea of how compression has been applied to images across various upload interfaces.
Image Histogram is available as a free download from the Chrome Web Store and Mozilla Add-Ons.