Selection Marquee scaling blurs selection edges

[Devil_Inside]

Since there is no proper way to define precise selection size, the suggested way is to select an area with a selection marquee and scale and move that selection marquee using the transform panel. There is an issue with this approach however, as it seems the selection marquee scaling has some weird sampling and the resulted selection has blurry edges and is actually of a different size than what is specified in the transform panel.

This behavior is amplified if the initial selection marquee is very small and is scaled to a very large size, as shown in the following example.

Steps to reproduce:

1. Open a 2048 image and select a small area in the middle of the image using Rectangular Marquee Selection tool

2. Change X, Y, W, H of the selection to 0,0,2048,2048

3. Copy selection to clipboard and go to File -> New From Clipboard

 

You can clearly see that the resulted pasted image has weird blurry edges. In a lot of cases when you copy and paste a scaled selection, the resulted pasted layer also has a weird increase in size and it differs from the selection that you specified and copied to clipboard. When the difference between the initial selection size and the final scaled selection is small, the issue is not so apparent but it is still there and is very frustrating. It's a "gamebreaking" issue when you need to precisely re-arrange parts of a flat image. You copy one area to the clipboard, you paste and the resulted pasted layer has the wrong size and blurred edges and is impossible to align and position to a new spot.

It is mind-boggling that such a basic feature is so broken.

[Michail]

8 hours ago, Devil_Inside said:

It is mind-boggling that such a basic feature is so broken.

I can reproduce this (also in the beta). The scaled selection seems to be OK, because if you fill it with a colour, the edges stay sharp. Only when you copy the selection content (e.g. with Ctrl+J into a new layer) does it happen. This is very strange!

Workaround:
Create a vector shape (e.g. a rectangle). You can scale this as you like. Load the vector shape as a selection: To do this, hold down the Ctrl key and click on the layer thumbnail of the vector layer. You can then hide the vector layer and keep it in case you need it again. I don't know your specific case, but it may help you until the error is fixed.

[MEB]

Hi @Devil_Inside,
Sorry the delay getting back to you. We've been quite busy lately due to the amount of new posts/support tickets generated by the latest releases and the 90 day free trial offer/discounts.
This is a known issue that's already logged to be looked at. Thanks for reporting it.