OK, good. So then it looks like your procedure for showing an "actual pixels" crop from some image is now working properly. Now all that's needed is to make that an actual pixels crop from a camera resolution image, and we'll all be comparing the same sort of oranges.Deanimator wrote:The full size image was resized -50%. ... I believe that the crop is from that image.
Just because an image can be uploaded, doesn't mean that it should be uploaded. At some sites, you can upload a large image and the hosting site will both a) keep track of the original resolution image, and b) automatically generate resized copies that can be served out as appropriate. At photomacrography.net, that doesn't happen. Instead, the photomacrography.net forum software will accept large images but will immediately downsize them to 1024 pixels and throw away the originals.The full size image was resized -50%. I thought the original would be too big to upload. I know it would be elsewhere.
So you have to ask yourself, do you really want to hand over control of the downsizing to some unknown piece of code? Or would you rather downsize it yourself so that you retain control over what gets served back to viewers?
For myself, the answer is simple: do the downsizing myself, and upload to the forum only images that are already 1024 pixels or smaller, with a file size of 300KB or shorter. That way the forum will serve back exactly what I uploaded.
The same idea is described like this in our Posting Guidelines:
But whichever way you go on that decision, when we ask for "actual pixels", we mean the same size pixels that the camera recorded.One caution: there is a feature that at first glance looks like it may be useful, but actually it is not. If the image on your PC exceeds the maximum image size for the forum, then the forum software will automatically and silently resize it for you. Don't be fooled! The forum software will indeed resize an overly large image, but the quality is very poor. It is much better to have the image sized properly before uploading.
--Rik