Show to use unsharp masking algorithm. No image processing toolbox is needed.-Show how to use unsharp masking algorithm. No image processing toolbox is needed.

为了减小传统的反锐化掩模算法对噪声的敏感性，提出了一种新的反锐化掩模图像 增强算法，该算法在图像的平坦区域进行去噪处理，并依据人眼视觉特性对图像的不同细节 区域做不同程度的增强。通过几种算法的实验结果比较，表明本算法不仅增强效果较好，且 抑制了噪声的增强。-In order to reduce the traditional unsharp masking algorithm sensitivity to noise, a new Unsharp Masking image enha

Matlab source code for DCT-based watermarking for grayscale images. DCT-based watermark recovering without resorting to the uncorrupted original image. Digital watermarking has been proposed as a viable solution to the need of copyright protection an

here is the code for histogram equilization and convolution for image processing from gonzalvez book also the code for image rotation and image masking-here is the code for histogram equilization and convolution for image processing from gonzalvez bo

It is a matlab code to make a masking in spatial domain for an image. it contains different type of masking procedure for image processing.