Affinity photo - png opening shows blurry edges

[fanti]

Hey there

I did not find my problem so far in the forum so I decided to post my problem.

First: I am working as a programmer and not often using grafic software (mostly GIMP so far) and now switching to Affinity to get svg's mostly.

Target: to get the png added into a svg with Affinity photo

What I did: Opening the png after installing AP and getting a blurred version of the logo (attachement 2). Working with Windows 10 on a HP Laptop.

Collegues with mac and affinity photo or PS had no problem at all -.- 

Thanks in advance for your help.

[NotMyFault]

Hi fanti,

first i must admit that i may mis-interprete your question.

My understandig: when zooming in to more than 1:1, you might observe that the egdes of your logo seem unsharp. This is caused by the anti-aliasing of image pixels when rendered onto your monitor (or export). Anti-aliasing cannot be de-activated in Photo as far as i know.

This issue can be observed when your image-data is not perfectly pixel-aligned, or you are using thin strokes of 1 pixel width for vector shapes.

But there is a simple cure to get sharp edges: just add a procedural texture filter with the formula shown below. It will remove the softness resulting from anti-aliasing and replace it by sharp pixels. The input variable "a" can be used to fine-tune this effect. Start with a=-0.5. It works only for objects which are using alpha to seperate from background (which is given in your example image).

regards,

Timo

sharep edge privatschule.afphoto

[John Rostron]

It is also worth noting that when viewing your image to assess sharpness, you should always view at 100%. Your screenshot is displayed at 111.4%.

John

 

[lepr]

 

@fanti: go to the Performance section of the app preferences and change Display Quality from "Nearest Neighbour (atrocious)" to "Bilinear (reasonable)".

(The default for the app is Nearest Neighbour to make it perform better on devices such as an Osborne 1.)