topic Re: How to convert 3 channel to 4 channel? in Intel® Integrated Performance Primitives

How to convert 3 channel to 4 channel?

syingyos — Mon, 02 May 2005 02:58:16 GMT

Hi,

How to convert 3 channel to 4 channel? or 4 to 3

Thank you

Re: How to convert 3 channel to 4 channel?

syingyos — Mon, 02 May 2005 04:14:15 GMT

sorry , i'm new in ipp and i have more question.

% Create data set // x is image
SY=size(x,1); SX=size(x,2); y=zeros(K,K,numDim,T);
for t=1:T
irnd=ceil(rand*(SY-K+1)); jrnd=ceil(rand*(SX-K+1));
y(:,:,:,t)=x(irnd:irnd+K-1,jrnd:jrnd+K-1,:);
end;

How i createfunction like in matlab as y(:,:,:,t), when y(width,height,channels,T),,So, y is store each image by T.

i try to created like this :

Ipp8u* yDst = ippiMalloc_8u_C4( widthPixels, heightPixels*T, &stepBytes );

T = ceil(pow(

0.5,2)*(width*height/3);and my image is about 256*256, then T=5426 when i run program it show " out of memory"

Thank you

Re: How to convert 3 channel to 4 channel?

Vladimir_Dudnik — Fri, 13 May 2005 21:41:22 GMT

Hi,

could you please explain which part of your program shows message out of memory? Is it IPP function or other code?

Regards,

Vladimir

Re: How to convert 3 channel to 4 channel?

borix — Sat, 14 May 2005 12:33:18 GMT

please call ippiCopy C3AC4

Re: How to convert 3 channel to 4 channel?

borix — Sat, 14 May 2005 12:40:06 GMT

are you ok with this amount of mem allocated?more than256*256*4*5425