Interactive Contrast Enhancement by Histogram Warping

Mark Grundland



Interactive Contrast Enhancement


Interactive Contrast Enhancement by Histogram Warping
Mark Grundland and Neil A. Dodgson
Computational Imaging and Vision, vol. 32, pp. 832-838, Springer, (2004). ISBN 1402041780.
Presented as a talk at the International Conference on Computer Vision and Graphics (Warsaw, Poland, 22-24 September 2004).


We present an interactive contrast enhancement technique for the global histogram modification of images. Through direct manipulation, the user adjusts contrast by clicking on the image. Contrast around different key tones can be adjusted simultaneously and independently without altering their luminance. Histogram warping by monotonic splines performs the gray level mapping. User interfaces for contrast correction find application in digital photography, remote sensing, medical imaging, and scientific visualization.


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