MATLAB: Please help me out in rectifying the errors in implementing Content Based Image Retrieval System.

Question

I have 56 images in a database.i want to display and coompare best five images with the query image using eucledian distance.the problem which i get is that the result doesnot show best five images instead its showing only one image which is the query image.my program is:

PROGRAM NO 1:

clc;

G=imread('n252.tif');

H = adapthisteq(G);

[rows cols]=size(G);

[c1,s1]=wavedec2(H,1,'db1');

%disp(c1);

X=c1;

figure,imshow(G);

%figure,imshow(H);

fileFolder=fullfile(matlabroot,'toolbox','images','imphoto');

dirOutput=dir(fullfile(fileFolder,'*.tif'));

fileNames={dirOutput.name}

n=numel(fileNames)

g=zeros(1,n);

for k = 1 : n

fileNames1=strcat('fullfile(fileFolder)',fileNames(k))

I = imread(fileNames{k});

J = adapthisteq(I);

J = imresize(J, [rows cols]);

[c2,s2]=wavedec2(J,1,'db1');

%disp(c2);

Y=c2;

%[rows1 cols1]=size(J);

E_distance = sqrt(sum((X-Y).^2));

g(1,k)=E_distance;

if g(1,k)==0

    w=k;

end

%figure,imshow(I);

%figure,imshow(J);

end

disp(g);

%II=imread(fileNames{w});

%figure, imshow(II);

[sorted,IX] = sort(g);

bestFiveImages = IX(1:5);

for I = 1:length(bestFiveImages)

 figure;imshow(imread(fileNames{bestFiveImages(I)}));

end

the error came as follows:

??? Error using ==> images\private\checkinput>check_attributes

Function ADAPTHISTEQ expected its first input argument, I,

to be two-dimensional.

Error in ==> images\private\checkinput at 37

check_attributes(A, attributes, function_name, variable_name, …

Error in ==> adapthisteq>parseInputs at 411

checkinput(I, {'uint8' 'uint16' 'double'}, …

Error in ==> adapthisteq at 155

[I, selectedRange, fullRange, numTiles, dimTile, clipLimit, numBins, …

Error in ==> new at 18

J = adapthisteq(I,'clipLimit',0.02,'Distribution','rayleigh');

please help me out in rectifing these errors..

actualy i have done the same program but with different database.in that case the result came out but when i have changed the database the above problem persists..

the same program which is done by using different database is as follows(here the result came):

PROGRAM NO 2:

clc;

G=imread('lion1.jpg');

G1=rgb2gray(G);

H = adapthisteq(G1);

[rows cols]=size(G1);

[c1,s1]=wavedec2(H,1,'db1');

%disp(c1);

X=c1;

figure,imshow(G);

%figure,imshow(H);

fileFolder=fullfile(matlabroot,'toolbox','images','imda');

dirOutput=dir(fullfile(fileFolder,'*.jpg'));

fileNames={dirOutput.name}

n=numel(fileNames)

g=zeros(1,n);

for k = 1 : n

fileNames1=strcat('fullfile(fileFolder)',fileNames(k))

I = imread(fileNames{k});

I1=rgb2gray(I);

J = adapthisteq(I1);

J = imresize(J, [rows cols]);

[c2,s2]=wavedec2(J,1,'db1');

%disp(c2);

Y=c2;

%[rows1 cols1]=size(J);

E_distance = sqrt(sum((X-Y).^2));

g(1,k)=E_distance;

if g(1,k)==0

    w=k;

end

%figure,imshow(I);

%figure,imshow(J);

end

disp(g);

%II=imread(fileNames{w});

%figure, imshow(II);

[sorted,IX] = sort(g);

bestFiveImages = IX(1:5);

for I = 1:length(bestFiveImages)

 figure;imshow(imread(fileNames{bestFiveImages(I)}));

end

here in program no 2 no such error is coming.so i want to know what is the mistake in program no 1.the result is coming in program no 2 but in program no 1 no result is coming instead the errors are coming.though the two programs are same only the difference is that i have taken different databases in these two above mentioned programs..Thanks

Answer 1

adapthisteq() doesn't work with color images.

Anyway, there is no CBIR that I can see in your code. You're just comparing the intensities of the wavelet images. I could be wrong because I'm not a wavelet guy, but I don't think that will allow you to do things like "show me all pictures with a beach in them" or "show me all photos with a dog in them", etc.