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Sneha P S
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Question
how i can make a part of image black
I would like to crop an image that is, make a small block of an encrypted image black. How can i do that?
mer än 6 år ago | 1 answer | 0
1
answerQuestion
How to scramble an image?
I need to scramble an image and want to get back the orginal image. So i used the below code im = imread('cameraman.tif'); ...
mer än 6 år ago | 1 answer | 0
1
answerQuestion
How to multiply every pixels?
I need to find the product of every all the pixel values in a matrix. That is, if an image of size 256×256×3 is taken... i need ...
mer än 6 år ago | 1 answer | 0
1
answerQuestion
How to shuffle an image diagonally?
I need to shuffle an image of size 256x256x3 along diagonally. That is the pixel value of upper left corner must come at the low...
mer än 6 år ago | 2 answers | 0
2
answersQuestion
Is it an integer value?
1.7008e+05. IS this value considers as an integer in matlab.I found such values and when performing bitxor operation there occur...
mer än 6 år ago | 2 answers | 0
2
answersQuestion
How to check whether all the elements are integer?
I had a vector of size (1 x 65536). How can i check whether all the elements in that vector is an integer.
mer än 6 år ago | 1 answer | 0
1
answerQuestion
"Error using bitxor Double inputs must have integer values in the range of ASSUMEDTYPE.
While running my code there occurs an error like "Error using bitxor Double inputs must have integer values in the range of ASSU...
mer än 6 år ago | 1 answer | 0
1
answerQuestion
Binary string must be 52 bits or less error?
I had some values in RRbin of size 65536 x 36 and type double.Then i xor-ed them with sybin(65536 x 36 double) The result of xor...
mer än 6 år ago | 1 answer | 0
1
answerQuestion
How to solve the error "In an assignment A(I) = B, the number of elements in B and I must be the same."
for i = 1:65535 RR(i+1)=mod((double(R(i))+GG(i)+BB(i)),256); GG(i+1)=mod((RR(i)+double(G(i))+B...
mer än 6 år ago | 0 answers | 0
0
answersQuestion
Why i didnt get the image back during decryption using this inverse code ?
I used the below code for image scrambling and unscrambling. But i didnt get the exact image in unscrambling. In the decrypted i...
mer än 6 år ago | 1 answer | 0
1
answerQuestion
saving the output image
Ineed to save my output image using a filename in one folder? How is it possible?
mer än 6 år ago | 1 answer | 0
1
answerQuestion
How to divide an image into 8x8 blocks?
I had an image of size 256*256 which is in ycbcr color space.I need to divide that input image into 8x8 blocks and need to apply...
mer än 6 år ago | 2 answers | 0
2
answersQuestion
XOR operation of double values?
I have a chaotic sequence of 65536 values in sy and the binary equivalent is stored in sybin as type double. Sybin has 65536 bin...
mer än 6 år ago | 1 answer | 0