title: Image as a signal representation
body: <p>I have an image A(RGB) and B which is a gray scaled 256*256 size. How does one represent a gray scaled and an RGB image as a signal with X axis showing the time and Y axis the amplitude or the values? I have attached a picture of how I want to represent the image as a signal. Now, I really do not know if it is possible to do the same with an image. The representation can be a continuous form. I do not know what values are to be represented on Y axis, if it is the gray levels then what would be the difference between this plot and histogram (which will be a plot of gray levels vs number of pixels). The objective of this representation is to transmit the image as signal over a wireless communication channel using hardware and to show the effects of channel noise and denoising mechanism at the receiver section.<img src="https://i.stack.imgur.com/plTAc.png" alt="signal"></p>