Kdenlive/Manual/Effects/Colour/RGB Parade
RGB Parade
This is the FilterFrei0r-rgbparade MLT frame work filter.
Display a histogram of R, G and B components of the video data.
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This is different from the RGB Parade from the View Menu because the Effect version writes the histogram into the output video whereas the View Menu version just displays the histogram in widget in the application while you preview your project.