Hello Guys Today i would like to post the MATLAB implementation of Image negatives or image negation. Image Negation is nothing but inversion of pixel values. We simply invert the pixel values as follows.
L-1-->0
0-->L-1
L/2-->L/2
The Image Negation we can Implement with the following Transformation function. The inversion is takes place with the help of this transformation curve.
The expression that we use for image negation is mentioned below. where s is output, r is input and L-1 is maximum pixel value present in input image r.
The corresponding MATLAB outputs for input binary, gray-scale and color image is shown below.
Gray-scale Image Output
Color Image Output
Binary Image Output
So above outputs are taken for different input images.
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