Leginon

redux and php-mrc do not handle image scaling in the same way. I discussed this point with Bridget early on in the implementation of redux for web server. Her point of view is there is no need to make them exactly the same. Please let me know of a specific page or function that the new behavior is not acceptable.

I've known one already: Atlas view scaling from redux is on individual image while php-mrc is on the whole.

Below is more a technical explanation of the difference.
php-mrc does two dimension scaling. First time to a smaller size for the speed of processing which you specify in the "Adjust" window. Second time to fit into the display area of the web page. The intensity scaling is done between the two dimension scaling. Since scaling/binning introduce a filtering effect just by averaging numbers of pixels, the standard deviation in the image statistics is different from the original. Redux scale dimension only once, and does the intensity scale on the scaled dimension. I made redux to scale according to the original statistics but could not reproduce the php-mrc behavior that way.