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- clear all;
- tire = imread('tire.tif');
- tire_negative = 255 - tire;
- imshow(tire);
- title('Tire');
- figure
- imhist(tire);
- title('Tire hist');
- figure
- imshow(tire_negative);
- title('Tire negative');
- figure
- imhist(tire_negative);
- title('Tire negative hist');
- % power law transformation
- gamma_05 = 0.5;
- gamma_13 = 1.3;
- figure
- im_gamma_05 = im2double(tire).^gamma_05;
- imshow(im_gamma_05);
- title('Tire with Power-Law Transformation of 0.5');
- figure
- imhist(im_gamma_05);
- title('Tire with Power-Law Transformation of 0.5 - Histogram');
- figure
- im_gamma_13 = im2double(tire).^gamma_13;
- imshow(im2double(tire).^gamma_13);
- title('Tire with Power-Law Transformation of 1.3');
- figure
- imhist(im_gamma_13);
- title('Tire with Power-Law Transformation of 1.3 - Histogram');
- % histogram equalization
- equalized_im = histeq(tire);
- figure
- imshow(equalized_im);
- title('Equalized Tire Image');
- figure
- imhist(equalized_im);
- title('Equalzied Tire Image - Histogram');
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