In this tutorial I’m going to show you how to compare two images to see whether they are the same or not using C#.
/// <summary> /// This method deals with checking whether the two bitmaps that are passed to it are the same or not /// </summary> /// <param name="img1">The first image</param> /// <param name="img2">The second image</param> /// <returns>True if the images are the same, else false</returns> public static bool imagesAreTheSame(Bitmap img1, Bitmap img2) { int imgHeight = img1.Height; int imgWidth = img1.Width; int hCounter = 0; int wCounter = 0; bool rtn = true; string pxl1; string pxl2; while (hCounter < imgHeight) { wCounter = 0; while (wCounter < imgWidth) { pxl1 = img1.GetPixel(hCounter, wCounter).ToString(); pxl2 = img2.GetPixel(hCounter, wCounter).ToString(); if (pxl1 != pxl2) { rtn = false; break; } wCounter += 1; } hCounter += 1; if (!rtn) { break; } } return rtn; }
Comparing two images to see if they are the same