Permanence evaluation of compression algorithms on PAM images of skin. (a) A sample A-line (indicated in Fig b(i)) of (i) original PAM volume data, (ii) compressed using DFT, (iii) compressed using DCT, and (iv) compressed using DST. (b) Maximum amplitude projection images of (i) original image, (ii) compressed using DFT, (iii) compressed using DCT, and (iv) compressed using DST. The inset images in b, specified with green dotted squares, show the maximized low SNR parts of the images. The white arrow in b(i) represents the location from which the time trace signals are taken. (c) Line profiles produced from the purple dotted lines in images in b.

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