Abstract:
This paper presents a survey of various digital images enhancement methods using piecewise-linear transformation. Images enhancement is process that the output images more suitable than the original. Images enhancement has very applications, for example medical images, images captured in remote sensing, images from satellite etc. The primary condition for image enhancement is that the information you want to restore must exist in the original image. Piecewise linear transformation would divide the image into triangular regions. Each triangular region in the target image would be mapped to its corresponding triangular region in the reference image using a linear transformation.
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