Color Image Enhancement based on Segmentation Region Histogram Equalization
4. Implementation Result The edge preserving smoothing process is applied to the original images Fig. 2. The graph theory is employed for segmenting the images of Fig.2. The histogram of each segmented region will be equalized independently. By assigning the color red, green and blue to processed image. The result of color image enhancement is shown in Fig.3(a). While the traditional method of global histogram equalization is presented in Fig.3(b).
(a) band 4
(b) band 4
(c) band 4
Fig.2 Original TM image
(a)
(b)
Fig.3 Colour image
(a) Colour image from local area histogram equalization
(b) Colour image from global histogram equalization
