Howtosignalprocessing
- How do I add two images of different size in Matlab?
- How to calculate the PSNR of two images in Matlab?
- How to calculate PSNR and MSE in Matlab?
- How can I increase my PSNR image value?
How do I add two images of different size in Matlab?
You can just index elements in bigger image and assign them values of smaller image. combinedImage = biggerImage; s = size(smallerImage);
How to calculate the PSNR of two images in Matlab?
peaksnr = psnr( A , ref ) calculates the peak signal-to-noise ratio (PSNR) for the image A , with the image ref as the reference. A greater PSNR value indicates better image quality. peaksnr = psnr( A , ref , peakval ) calculates the PSNR of image A using the peak signal value peakval .
How to calculate PSNR and MSE in Matlab?
mse = sum(sum(squaredErrorImage)) / (rows * columns); % Calculate PSNR (Peak Signal to Noise Ratio) from the MSE according to the formula. PSNR = 10 * log10( 256^2 / mse);
How can I increase my PSNR image value?
PSNR is just a measure of quality of an processed image form original image. To increase PSNR of an image, you should first remove noice from the image using some filters, refer noise removal for more information. Type of filter will depend on the type of noise in the image.
