enter image description here

I have been trying to fix this for a while and now it is getting really annoying. All my text and anything that I fill is jagged. The image below I filled with the polygonal lasso tool and it looks very jagged.

I have the DPI on 300 and have tried going lower and higher but it doesn't effect anything. I have tried a lot of different ways to fix it over the year but nothing seems to work. It used to get worse every time I resized the image, but I ended up finding a fix for that.

I am not sure if this is just a me problem since I have a weird resolution 1400x900. But completely straight lines are jagged and it is very frustrating. Any help would be appreciated, thank you.

  • 1
    DPI does not affect your screen. You have turned antialiasing off. – joojaa Jun 9 at 19:48
  • 1
    Monitors use pixels to display. Only a monitor with a higher pixel density will help alleviate the display of pixel edges. You are also zoomed in on that image, so edges will be more apparent. – Scott Jun 9 at 19:51
  • Also note that in that particular image there are no "completely straight lines". Every line is at an angle. Angles and curves may pixels more apparent. – Scott Jun 9 at 20:11

DPI is not the resolution of a digital image. It's the print output resolution. If you don't understand why, then have a look at this article: The Myth of DPI.

The main problem I see is that you have anti-aliasing disabled in the tool options for the Poylgon Select tool, which will make pixels jagged when you fill the selection.

Example showing zoomed in anti-aliased pixels (top) and anti-aliasing switched off (bottom)

enter image description here

Also you are zoomed in to 133%, which will make it look even worse. View images at 100% instead. You can't zoom in on raster images and not expect to see pixels.

Example showing zoom set to 100%. You can see anti-aliased pixels look smoother. Note that a line at an angle will always show jagged pixels to some degree in raster graphics. It will never look perfect, but that is only because they are made of pixels.

enter image description here

| improve this answer | |

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.