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Maranatha Christian University

Aktiv seit 2012

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Professional Interests: steganography

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blockproc and find best matching block with drms
i have problem with my work with matlab. i would like to know how to find best matching block with Drms. before that, i have to ...

fast 10 Jahre vor | 0 Antworten | 0

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matrix operation make matrix
i have matrix A = rand(64,4), i want to process them to make new matrix where B = (K-A(:,1))*2 . k is multiply every 8, example ...

mehr als 12 Jahre vor | 1 Antwort | 0

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GUI process calling variable
i have a GUI about steganography. hiding and extract. my program in extract have to call variable in hiding process. what kind o...

mehr als 12 Jahre vor | 1 Antwort | 0

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matrix operation make matrix
i want to make matrix. for manual way or the output A=[1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 3 3 3 3 3 3 3 3 ... 8 8 8 8 8 8 8 8...

mehr als 12 Jahre vor | 2 Antworten | 0

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matrix operation resize matrix
i have matrix, the size is 36x44. i want to process the matrix so the size is 48x48, but the different or the rest between 36x44...

mehr als 12 Jahre vor | 1 Antwort | 0

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binary process, biner to decimal
i have binary number 20 bit (uint8), i want to convert the binary number to decimal. i use bin2dec but before i must convert num...

mehr als 12 Jahre vor | 2 Antworten | 0

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least significant bit process
i have matrix A(64x72). A is bit number. i want to embed every number in A to last bits of image B(RGB) after dec2bin process. t...

mehr als 12 Jahre vor | 1 Antwort | 0

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cell operattion double to uint8
i have a cell A{64,4} and the type is double. i want to conversion double to uint8. but in matlab it is not possible because A i...

mehr als 12 Jahre vor | 2 Antworten | 0

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least significant bit process
i have matrix A, let we say, A=rand(1,256). A contains important coefficient. Because A is decimal like 0.xxxx, so i make B=A*10...

mehr als 12 Jahre vor | 1 Antwort | 0

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mat2cell operation coordinates cell
i have a program from my question in 14 feb 2013, answered by Azzi Abdelmalek. A=rand(4,4,4,4) [ii1,ii2,ii3,ii4]=size(A)...

mehr als 12 Jahre vor | 0 Antworten | 0

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operation array in cell
A=rand(13,13,8,8); B=rand(13,13,8,8); Z=mat2cell(Temp, [16 16 16 16 16 16 16 16 16 16 16 16 16] , ... [16 16 16 16 16 16 16 ...

mehr als 12 Jahre vor | 0 Antworten | 0

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operation array in cell
i have 2 matrix A and B and cell Z with 13*13 blocks. each blocks have 8*8 pixel. A=rand(13,13,8,8); B=rand(13,13,8,8); ...

mehr als 12 Jahre vor | 1 Antwort | 0

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operation array in cell
i have a problem. i have a cell A. cell A have 13*13 blocks (A{1,1},A{1,2},..., A{13,13})and every blocks have 8*8 pixels. i hav...

mehr als 12 Jahre vor | 1 Antwort | 0

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operation array in cell
i have problem with cell operation. i have 2 cells, first cell is A. A has 8*8 blocks and every blocks has 8*8 pixel. the seco...

mehr als 12 Jahre vor | 0 Antworten | 0

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mat2cell operation coordinates cell
i have problem with cell operation. i have 2 cells, first cell is A. A has 8*8 blocks and every blocks has 8*8 pixel. the second...

mehr als 12 Jahre vor | 1 Antwort | 0

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find the value matriks
this is my program. ihave 2 cells c and d. next, i got process rms in mintemp and i got the minimum value and the coordinate of ...

mehr als 12 Jahre vor | 0 Antworten | 0

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find value from matriks
i have matriks A with size (64,4), so the variables is part of A = [A1 A2 A3 A4] i want to process them, to find a value ei=A3-(...

mehr als 12 Jahre vor | 2 Antworten | 0

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find the location of minimum value
i have matrix with 4 variables, A=mintemp(a,b,c,d). i have find the minimum value especially at V=mintemp(:,:,1,1) dan the minim...

mehr als 12 Jahre vor | 3 Antworten | 0

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find the parameter of affine transform
how to find the parameter of affine transform, especially to get the coordinates the block to apply the affine transform to get ...

mehr als 12 Jahre vor | 0 Antworten | 0

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find the minimum value
i have a matrix A with double class type data. i have to find the minimum value of matrix, the problem is the min function on ma...

mehr als 12 Jahre vor | 1 Antwort | 0

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mat2cell operation - add operation every cell
i have an mat2cell A 12*12 blocks cell, each cell there's 8*8 pixel. then i have mat2cell B 8*8 blocks cell wih each cell there'...

fast 13 Jahre vor | 0 Antworten | 0

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how to divide image to overlapping blocks
how to divide image to overlapping blocks using blockproc or mat2cell.

fast 13 Jahre vor | 2 Antworten | 0

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how to divide image to overlapping blocks
i have an image 256*256, i want to divide the image to 16*16 every blocks. every 4 pixel, i want to take one blocks and continue...

fast 13 Jahre vor | 1 Antwort | 0

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part of fractal image compression
does anyone know how to partition YUV images to nonoverlapped blocks and overlapped blocks ?? then i have to find best matched b...

etwa 13 Jahre vor | 0 Antworten | 0

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matlab code for fractal image compression ?
matlab code for fractal image compression ??

etwa 13 Jahre vor | 0 Antworten | 0

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Beantwortet
how to downsample YUV colour image but downsample process only in U and V components ??
thank you for your help, and how about my next question ? about partition images into nonoverlapped blocks ?

etwa 13 Jahre vor | 0

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how to downsample YUV colour image but downsample process only in U and V components ??
how to downsample YUV colour image but downsample process only in U and V components ?? and after that, i'm reaaly confused how ...

etwa 13 Jahre vor | 2 Antworten | 0

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