how to pass the matrix value outside the loop

1 次查看（过去 30 天）
Nik
Nik 2014-10-16
回答： Pratik 2024-12-12
I need to pass the matrix value of 'xd' outside the loop.
% display all the blocks.
plotIndex = 1;
numPlotsR = size(ca, 1);
numPlotsC = size(ca, 2);
for r = 1 : numPlotsR
for c = 1 : numPlotsC
subplot(numPlotsR, numPlotsC, plotIndex);
rgbBlock = ca{r,c};
%find the different pixel intensity
maxi= max(rgbBlock(:))
mini= min(rgbBlock(:))
diff = maxi - mini
if diff >= 150
fprintf('Hard Region\n')
n = 4; % Decomposition Level
w = 'db4'
x = rgbBlock;
[c l] = wavedec2(x,n,w); % Multilevel 2-D wavelet decomposition.
opt = 'gbl'; % Global threshold
thr = 20; % Threshold
sorh = 'h'; % Hard thresholding
keepapp = 1; % Approximation coefficients cannot be thresholded
[xd,cxd,lxd,perf0,perfl2] = wdencmp(opt,c,l,w,n,thr,sorh,keepapp);
image(xd) % xd is a matrix, I want to pass the ...
'xd' value out from this loop
else if diff < 150
fprintf('soft Region\n')
else
fprintf('Out of Region\n')
end
end
[rowsB columnsB numberOfColorBandsB] = size(rgbBlock);
plotIndex = plotIndex + 1;
end
TQ friend... :)

请先登录，再回答此问题。

回答（1 个）

Pratik
Pratik 2024-12-12
Hi Nik,
It is my understanding that you want to use the value of variable 'xd' outside of the for loop as well.
For now, variable's scope is defined inside the for loop hence accessing outside the loop will not be possible. To access the value of 'xd' it can be defined outside of the for loop. Please note that after the for loop ends 'xd' will have the latest value.
I hope this helps!

类别

在 Help Center 和 File Exchange 中查找有关 Loops and Conditional Statements 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by