Hi@all,

I'm an new krita user and I have problems when using krita. I inserted an image on a flat and would round out the corners. How can I do that?

with best
pixel

Hi Pixel,

I'm sorry but that's not something Krita can easily help you with. Ideally we'd have a plugin like the drop shadow plugin (which seems broken ) that helps make you round corners, but we don't have that at the moment.

An alternative could be to create a local transparency mask with a rectangle vector selection which is modified to have rounded corners. But that feature isn't yet implemented either...

There is a way. You can put a rectangle shape with rounded corners on a layer below the image. Then you switch the layer with the image to use screen composite op.

Krita is primarily a painting tool, so an proper way would be to round the borders with an brush (as eraser).

If filters would work on transparency mask, the you would create transparency mask and run gaussian filter on it, but filters currently does not work on the transparency mask.

Ok, I came up with more complicated but working solution
1. Open your image (it's on layer 1)
2. Create new layer and fill layer 2 with white color and run gaussian filter with radius 40
3. Select tool from toolbox "Select a contiguous area of colors"
4. In tool options play with the fuzziness a bit and select the white area in layer 2
5. Select layer 1
6. Select -> Invert Selection
7. Press Del to delete the selection
8. Tada rounded corner(s)

You have got idea

It's not perfect though. Seems like gaussian filter is broken a bit (makes only rounded corner bottom right)

slangkamp wrote:There is a way. You can put a rectangle shape with rounded corners on a layer below the image. Then you switch the layer with the image to use screen composite op.

it sounds like what I'm looking for. I don't understand the last step "to use screen composite op." can you explain the step?

with best
pixel

You can change it in the layerbox.
It controls how the layers are combined.

Ok, I have create a krita-file with tow layers. A layer with the image an a vektor-layer below the image-layer with a rectangle shape with rounded corners.



Now I switch to the the layer with the image and set "screen". The result:



what I'm doing wrong?

Can you upload the file somewhere so that I can take a look?

slangkamp wrote:Can you upload the file somewhere so that I can take a look?

Here is ti:
http://www.dreampixel.de/bilder/Flyer.kra

Hi pixel,
I think this is what you want:
HERE
(I had to modify the shape style: fill it with white and remove outline, then disabled alpha channel of the picture layer)

ok, it works