Code Block of Operates in Image Processing

I tried this:

%Take negative
%positiveImage = imread('cameraman.tif');
%negativeImage = 255 - positiveImage;
%imshow(negativeImage)
%or
1) a=imread('cameraman.tif');
d(:, :, 3) =255 - a(: ,:, 3);
d(: ,:, 2) = 255 - a(:, :, 2);
d(:, :, 1) =255 -a(:, :, 1);
imshow([a,d])

%log transformation with c=10
clc; clear all; close all;
f=imread('cameraman.tif')
g=rgb2gray(f);
c=input('Enter the constant value, c= 10');
[M,N]= size(g);
for x=1:M
for y=1:N
m= double(g(x,y));
z(x,y)= c. *log10(1+m);
end
end
imshow(f), figure, imshow(z);
%power-law with c=10, gamma=0.5
clc; clear all; close all;
RGB=imread(' cameraman.tif');
I=rgb2gray(RGB);
I=im2double(I);
[m,n]= size(I);
c=10;
g=[0.5];
for r= 1:length(g)
for p=1:m
for q=1:n
I3=(p,q) =c *I(p,q). ^ g(r);
end
end
figure, imshow(I3); title('Power law transformation'); xlabel('Gamma='), ylabel(g(r));
end

%contrast stretching
I=imread('cameraman.tif');
[m,n]=size(I);
figure, imshow(I);
minp=min(min(I));
maxp=max(max(I));
maxp=double(maxp);
minp=double(minp);
c=10;
d=255;
for i=1:m
    for j=1:n
        sonuc=(((d-c)/(maxp-minp))*(double(I(i,j))-minp))+c;
        B(i,j)=round(sonuc);
end
end
B=uint8(B);
figure, imshow(B);

Answer 1

[Image Analyst]

See the FAQ: How to process a sequence of files

In the middle of the loop, call a function that processes one image only and returns an output image. Then call sprintf() to create an output name, then call imwrite() to save the output image to that output file name.

[Rooter Boy]

Sir, are take negative, log transformation,power-law transformation and contrast stretching correct? I'm not sure. Can you examine the codes?

[Image Analyst]

z(x,y)= c. *log10(1+m);

and

I3=(p,q) =c *I(p,q). ^ g(r);

You cannot have a space after the dot. Just got through the syntax errors one by one until they're all gone. Also, you can't have two equals signs on the line like you did.

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[Rooter Boy]

I guess there is no other mistake than these.

I fixed form:

z(x,y)=c.*log10(1+m);

I3=(p,q)=c*I(p,q).^g(r);

[Rooter Boy]

Sir, I guess used the filters correctly.

[Rooter Boy]

I wonder if I use the filters correctly. If the filters here are correct, so that i would be glad if you check the filters here: https://www.mathworks.com/matlabcentral/answers/650728-filters-main-function-in-image-processing?s_tid=srchtitle

[Image Analyst]

If you still have trouble, post the latest code.

[Rooter Boy]

I am not having problems right now, I would be glad if you look at the other question I posted.

[Rooter Boy]

Sir, could you help me when you are available? you are professional at matrix operates in matlab.

https://www.mathworks.com/matlabcentral/answers/652808-nwc-and-lcm-code-block-in-matlab

[Image Analyst]

Sorry, I don't know much about that topic and don't understand what or why you think something's wrong with the code.