filtered image

I am getting a bigger size image when I am saving the filtered image(imfilter with 'same' option).After filter when I use 'size' function it is showing that the image is of the same size.But the saved image(with same extension) is of bigger size.If I use imresize the image becomes odd looking . I am unable to relate the filtered image pixelwise with the reference image.How can that problem be solved?

Answer 1

[Image Analyst]

That's possible if you're using JPG format since the compression amount depends on the image content. It would not be possible with lossless formats like Tiff, bmp, & PNG.