EDGE DETECTION AND COLOR SEGMENTATION

Objectives To detect image edges using Prewitt and Sobel filter masks To segment images using color segmentation algorithms Results and Discussion Filter masks are used to detect edges of images by finding areas where abrupt changes or gradients in intensity value are located. Two of the most commonly used filters for pixel-by-pixel edge detection are […]

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RESTORATION OF OLD COLOR PHOTOGRAPHS

Objectives To enhance old color photographs using color balancing techniques To improve image restoration using histogram manipulation on the images Results and Discussion White balance, also called color balance, is an important technique in restoring old color photographs as it adjusts the intensities of the colors in the image such that the colors look more […]

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PROPERTIES AND APPLICATIONS OF 2D FOURIER TRANSFORM

Objectives To demonstrate the anamorphic property and rotation property of the two-dimensional Fourier transform To perform convolution of binary images with arbitrary patterns To implement ridge enhancement and line removal using filters Results and Discussion Fourier transform (FT) gives the spatial frequency distribution of a signal. In two-dimensions, FT exhibits distinct properties such as anamorphism […]

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DISCRETE FOURIER TRANSFORM

Objectives To implement discrete Fourier transform in computational application To demonstrate Fast Fourier Transform algorithm in different synthetic binary images To perform convolution of a binary image with apertures of varying size Results and Discussion            Fourier transform is a linear transform that brings a function in one domain to the […]

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