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kush


16 total contributions since 2012

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Question


function call from guide
i am calling a function 'function watermarkedImage = fembed (originalImage,watermark,key)' from the callback of a gui fig...

7 years ago | 1 answer | 0

1

answer

Question


guide callback function
how to use a veriable from one matlab callback function into another i am defining veriable 'key' in func 'function scram...

7 years ago | 1 answer | 0

1

answer

Question


correlation
how can i find correlation between 2 1D array each containing 7 double values is their any inbuilt function? examples of 2 arra...

7 years ago | 1 answer | 0

1

answer

Question


image scrambling using arnold scramble
does anyone knows about arnolg's image scrambling ? i am scrambling an image using arnold scramble as : wname='_copyright.b...

7 years ago | 0 answers | 0

0

answers

Question


Laplacian of Gaussian filter
can anyone please tell how to implement laplacian of gaussian filter on an image in matlab

7 years ago | 2 answers | 0

2

answers

Question


How to find the period of Arnold Scramble. plz help
After some iteration it will give a same image and half of that will be the period.

7 years ago | 0 answers | 0

0

answers

Question


blockproc
i am using blockproc command as HL122_BLK = blockproc(uint8(HL122),[4 4],fun); fun should be a handle for fuction 'faddpn' ...

7 years ago | 1 answer | 0

1

answer

Question


converting 3D matrix to 2D image
how to convert 3D matrix C(4x4x64) into 2D W1(32x32) plz help i have divided an image into 4x4 blocks & saved them into matrix ...

7 years ago | 3 answers | 0

3

answers

Question


converting 3D matrix to 2D
how to convert 3D matrix C(4x4x64) into 2D W1(32x32) plz help

7 years ago | 1 answer | 0

1

answer

Question


array division
how to divide a 1D array in 4 equal parts

7 years ago | 1 answer | 0

1

answer

Question


IDWT
i am facing a problem that after doing dwt2 on image say X if i do idwt2 with same cA cH cV cD output doesnt come same will u p...

7 years ago | 1 answer | 0

1

answer

Question


DWT
i am working on dwt2 with mode as 'db2' problem i am facing is that size of cA is not exactly half of image used,which create p...

7 years ago | 1 answer | 0

1

answer

Question


Re-formulate the image into a vector of zeros and ones.
i am working on a project of image processing & i need to convert an image into vector of 0 & 1.in this each pixel needs to be r...

7 years ago | 2 answers | 0

2

answers

Question


Digital Watermarking using DWT & DCT
Can any one plz help me to implement this algorithm for watermarking using Dct & Dwt Step 1: Perform DWT on the host image to...

7 years ago | 1 answer | 0

1

answer

Question


psudo random sequences
how to generate 2 uncorrelated psudo random sequence

7 years ago | 1 answer | 0

1

answer

Question


Divide 256*256 image into 4*4 blocks
I am working on a project of image processing (watermarking) & needs to divide 256*256 image into 4*4 blocks (overlaping) to get...

7 years ago | 5 answers | 0

5

answers