How to calculate image intensities of two different images for differentiation purposes

Hi everyone,

I have an input image, i have processed the same orignal image (input) by applying some contrast based algorithm. After that i applied the max operator to each image (oringnal image and processed image) for the extraction of highest pixels values which can be known as bright channel of the image. After calculating the bright channels of each orignal image and processed image now i want to calcultae the intensity of the each image to decide which image has more intensity or have more number of bright pixel. One of the method which i already know is the histogram calculation. I am interested for some another method as because in histogram i can not decide which one have more brighten. Or what is the best way by using the histogram method from which we can easily diffrentiate the high intensity image..Here i am providing the code and images. The code and all the images are attached.

Thanks in advance!

Answer 1

[Selva Karna]

share your image?

[Haseeb Hassan]

The images are already attached in the above post, kindly pay attention to that.

[Selva Karna]

image_folder='your images';

filepath=fullfile(image_folder,'*jpeg');

jpegfile=dir(filepath);

flen=length(jpegfile);

for k=1:flen

basefile=jpegfile(k).name;

fullfilename=fullfile(image_folder,basefile);

image=imread(fullfilename);

imag_inten(k)=max(image(:));

%% as struct formate

img_inten{k}=imag_inten;

end

[Haseeb Hassan]

Thank you so much for your time and help. I think your code is just trying to find the highest intensity value in the whole image, which is probably not my requirements. I want to compare the two images intensities, and want to decide which image has more pixels intensities. I will suggest you kindly read my question again and help me accordingly.

Once again a humble thanks for your kind response!

[Selva Karna]

Maximum intesities :

• Calculate Histrogram
• CNR
• SNR
• PSNR
• SSIM

[trinasha]

I need the same solution. Did you get the answer? How can I calculate 'which one is the brightest image/highest intensity'?

[Image Analyst]

We have no idea what "want to decide which image has more pixels intensities" means. Is it the number of pixels in the image? Is it the bright pixel intensity? Is it the integrated intensities or mean intensity? Please be specific. You are not being specific enough.