Can anyone point me to a source of help in using the perspective correction feature in Krita? I've tried for about an hour to figure it out, without success.

Here's what I'm trying: I click on the perspective correction icon (the text in the help bubble is "Perspective transform of a layer or selection"). My cursor is changed into a large plus sign, but there are no other changes apparent in the interface (e.g., no additional dialogs or controls appear). If I click on the image, nothing happens. However, when I click a second time a line appears between the location of the first click and the second. If I click again, another line appears.

I guess I'm supposed to click at the four corners of a shape that I want transformed into a rectangle. However, this doesn't work. The image ends up with lots of noise injected and is usually flipped horizontally or rotated 90 degrees.

There's also something called a perspective grid, but it doesn't seem to do anything but overlay lines on the image.

I'm using Krita 1.6.3 on Fedora 11 under GNOME. Thanks for any help.

--Michael

Hello,

You can find a video that demonstrates the tool here:

http://blog.cberger.net/2006/09/05/pers ... transform/

Cyrille,

Thanks, that was very helpful.

Unfortunately, it only seems to work properly with 8-bit images. When I use a 16-bit image, a lot of noise appears on the image. (It looks as if someone threw a lot of white dust on the picture.) Sometimes the noise has a pattern to it, other times it looks random.

--Michael