Write computer programs for the following:

Piecewise linear transformation with 2-slope change points and 3-slope levels (see lecture notes figure 3.10). These parameters(r & s) should be variable.

Show your results for a couple of cases for part a, as a minimum, your assignment should include the original image, a plot of various transfer functions, a plot of respective output images, and a comparison of input and output histograms.

 

Transcribed Image Text:

Ouput gray level, s L-1 3L/4- L2 Image Enhancement in the Spatial Domain L/4 0 -T(r) L/4 L/2 3L/4 Input gray level.r L-1 FIGURE 3.10 Contrast stretching. (a) Form of transformation function. (b) A low-contrast image. (c) Result of contrast stretching. (d) Result of thresholding. (Original image courtesy of Dr. Roger Heady, Research School of Biological Sciences, Australian National University. Canberra, Australia.) Ouput gray level, s L-1 3L/4- L2 Image Enhancement in the Spatial Domain L/4 0 -T(r) L/4 L/2 3L/4 Input gray level.r L-1 FIGURE 3.10 Contrast stretching. (a) Form of transformation function. (b) A low-contrast image. (c) Result of contrast stretching. (d) Result of thresholding. (Original image courtesy of Dr. Roger Heady, Research School of Biological Sciences, Australian National University. Canberra, Australia.)

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