Manav Goyal

Operations - Image Processing

  • Arithmetic Operations on Digital Images
    • Performed pixel by pixel between two images or among many images
    • Types
      • Addition operation (Pixel addition)
        • Add two images in pixel by pixel fashion
        • Matlab Command
              ima1 = imread('image1.tif');
    ima2 = imread('image2.tif');
    sum = ima1+ima2;
    <!-- OR -->
    imadd(ima1,ima2);
        • Any integer value can be added to an image matrix
      • Subtraction operation (Pixel subtraction)
        • imsubtract(ima1,ima2);
      • Multiplication operation (Pixel multiplication)
        • Matlab Command
              ima1 = imread('image1.tif');
    ima2 = imread('image2.tif');
    sum = ima1.*ima2;
    <!-- OR -->
    immultiply(ima1,ima2);
      • Division operation (Pixel division)
        • Matlab Command
              ima1 = imread('image1.tif');
    ima2 = imread('image2.tif');
    sum = ima1./ima2;
    <!-- OR -->
    imdivide(ima1,ima2);
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