Lesson 6 Accessing the Pixel Value of a Grayscale Image using Matlab

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Digital images are nothing but distribution of pixels in 2D spatial domain. So, if you want process images, you must have to know, how to access the pixel values. When you can access the pixel values, you can say, you have access to the building blocks of images. In this tutorial, we will learn, how to access the pixel values of a grayscale image using MATLAB. It is better to start learning by accessing the pixel values of grayscale images. Because grayscale images are consisted of a single channel. That is why, it is easier to understand the concept. In color image, such as RGB image, to access the pixel values, we need to specify the channels. For example, each pixel of an RGB images has three values in three channels (red, green and blue channel). As a result, when we want to access a pixel value, with the location of the pixel, we need to specify the channel as well. However, in case of grayscale image, there is no complexity. • You can copy the code from here: https://www.nzfaruqui.com/accessing-t...

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