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Question
What is the error in this code for HSV image watermarking?
Dear Sir, The code for watermarking of a color image with four different color images is given below, using HSV color space. Kin...
presque 10 ans il y a | 1 réponse | 0
0
réponseQuestion
How can this code explain the Error in psnr?
Sir, I have calculated psnr for rgb colored watermarked image to be 30 something. When i use a similar method on YCrCb image. th...
presque 10 ans il y a | 1 réponse | 1
1
réponseQuestion
How to apply contourlet transform to r color channel of a color image?
Sir, I am using 'Lena.,jpg' color image. obtaining r= (:,:,1), Kindly guide me how to modify this using CT in matlab? I have no...
presque 10 ans il y a | 1 réponse | 0
0
réponseQuestion
How to do watermarking using Counterlet transform?
Sir, I have used SVD technique to watermark a color image into another with the purpose of hiding the former image. Kindly guid...
presque 10 ans il y a | 1 réponse | 0
0
réponseQuestion
how to do watermarking using dct.
Respected sir, I have made the following code for watermarking in dct domain. org_img= imread('lena.jpg'); img4x4 = m...
presque 10 ans il y a | 1 réponse | 0
1
réponseQuestion
how to embedd a watermark using dct on a colored rgb image
Sir, I have done watermark embedding using haar wavelets. Kindly guide me how to use dct instead of haar wavelets. I have s...
presque 10 ans il y a | 1 réponse | 0
0
réponseQuestion
How to recombine a color image divided into blocks?
Dear sir, i used the following code to divide a color image into 4 blocks: img4x4 = mat2cell( org_img, size(org_img,1)/2 * o...
environ 10 ans il y a | 1 réponse | 0
1
réponseQuestion
How to correct matrix dimensions and recombine blocks into original image?
Dear sir, Following is the code I wrote for dividing a color image (512x512) into 4 blocks and watermarking 4 different images i...
environ 10 ans il y a | 1 réponse | 0
1
réponseQuestion
how to recombine blocks of an image into one?
Dear sir, I am working on Watermarking. I divided a color host image into blocks using mat2cell. i hid watermark image...
environ 10 ans il y a | 1 réponse | 0
1
réponseQuestion
how to divide a color image into blocks?
sir, my project is watermarking into a colored image(divided into 128x128 dimension 4 blocks) using dwt and svd technique. I...
environ 10 ans il y a | 1 réponse | 0
