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Maranatha Christian University

Attivo dal 2012

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Professional Interests: steganography

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Domanda

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 ...

quasi 10 anni fa | 0 risposte | 0

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Domanda

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 ...

oltre 12 anni fa | 1 risposta | 0

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Domanda

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...

quasi 13 anni fa | 1 risposta | 0

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Domanda

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...

quasi 13 anni fa | 2 risposte | 0

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Domanda

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...

quasi 13 anni fa | 1 risposta | 0

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Domanda

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...

quasi 13 anni fa | 2 risposte | 0

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Domanda

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...

quasi 13 anni fa | 1 risposta | 0

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Domanda

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...

quasi 13 anni fa | 2 risposte | 0

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Domanda

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...

quasi 13 anni fa | 1 risposta | 0

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Domanda

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)...

quasi 13 anni fa | 0 risposte | 0

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Domanda

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 ...

quasi 13 anni fa | 0 risposte | 0

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Domanda

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); ...

quasi 13 anni fa | 1 risposta | 0

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Domanda

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...

quasi 13 anni fa | 1 risposta | 0

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Domanda

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...

quasi 13 anni fa | 0 risposte | 0

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Domanda

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...

quasi 13 anni fa | 1 risposta | 0

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Domanda

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 ...

quasi 13 anni fa | 0 risposte | 0

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Domanda

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-(...

quasi 13 anni fa | 2 risposte | 0

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Domanda

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...

quasi 13 anni fa | 3 risposte | 0

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Domanda

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 ...

quasi 13 anni fa | 0 risposte | 0

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Domanda

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...

quasi 13 anni fa | 1 risposta | 0

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Domanda

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'...

quasi 13 anni fa | 0 risposte | 0

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Domanda

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

quasi 13 anni fa | 2 risposte | 0

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Domanda

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...

quasi 13 anni fa | 1 risposta | 0

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Domanda

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...

circa 13 anni fa | 0 risposte | 0

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Domanda

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

oltre 13 anni fa | 0 risposte | 0

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Risposto
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 ?

oltre 13 anni fa | 0

Domanda

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 ...

oltre 13 anni fa | 2 risposte | 0

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