Partial transparency to none?

[Lonely Tears]

Is there a quick way to do this in AP? I mean converting, not removing.

[Alfred]

You can’t recover information which was lost by making an image partially transparent, if that’s what you mean.

[lepr]

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[Lonely Tears]

@owenr Sort of yes. I'm just wanting to know how to make the edges of any image solid. Even using the shapes tool, the generated shape will have partially transparent edges.

Your suggestion worked and filled in the edges, but also filled in the rest of the canvas with black? Unless I misunderstood the instructions.

[Wosven]

If youf image was partially erased (instead of using a mask and keep the original working file), you can dupplicate it until you recover enough of the partially transparent zones, and use level or curves adjustement to get back more colors.

But it's difficult to get back the original file.

[lepr]

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[Lonely Tears]

I'm just practising with AP's own shapes tool wondering how to make the edges solid. There's nothing to upload.

[lepr]

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[Lonely Tears]

Figured it out.

[Lonely Tears]

Is Affinity Designer any easier for achieving solid pixels? I just swear it's so difficult to do in AP, but maybe that's because it's intended more for photos and the like.

[Alfred]

Printed photos don’t usually have transparent bits unless you cut holes in the paper! If you want a sharp transition from a subject which is completely opaque to a background which is completely transparent (instead of the usual white) you can achieve this by adjusting the coverage map so that the profile is a horizontal line at the bottom on the left, a vertical line in the middle and then a horizontal line at the top on the right.

[Lonely Tears]

Doesn't seem to do anything.

pink.afphoto

[Alfred]

I’m currently on my iPad, so I’m afraid I can’t post a screenshot of the Coverage Map control since it isn’t available in the iPad app, but it’s as @owenr described:

 

[Lonely Tears]

Oh yeah, that worked with fresh shapes, but what about pixel layer shapes like attached? I can't get the edges to become solid for anything.

[Alfred]

Do you mean the ‘pink.afphoto’ file you attached earlier? In the unlikely event that no one else gets there first, I’ll take a look when I’m back on Windows, but meanwhile here’s a link to an old post with nice illustrations of various coverage map settings and their effects on antialiasing:

 

[Lonely Tears]

Took a look. Nothing I do in the coverage map changes anything for the image strangely.

[Alfred]

Hmm ... yes, very strange! I tried applying a Threshold adjustment in the iPad app but still got a transparent background and ‘grey’ pixels around the edges of the object. To make the image completely black and white I had to export to JPEG, open the new file and apply another Threshold adjustment.

[lepr]

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[lepr]

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[Alfred]

30 minutes ago, owenr said:

That's the correct result. The region of the image that is not fully transparent is one pink colour with varying opacity in the pixels that define the border of that region. A threshold adjustment will make the pink become either all black or all white with varying opacity in the pixels that define the aforementioned border.

Thanks. I had somehow convinced myself that the end result should have a fully opaque white background, but that would clearly(!) only work when the pink becomes black so that you can still see it. 

[lepr]

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[Lonely Tears]

How do I nest the rectangle? When I drag it to the pink shape, it attaches but then I can't see either of them?

[lepr]

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[Lonely Tears]

Ok, I think I did that right, but applying the curve changes all the layers even though I have just that one highlighted? I did isolate it by selecting the outline of that one layer, but then dragging the curve down afterwards to nest the rectangle made the effect disappear.

Or alternatively, I tried doing the curve on the nested pixel image but it doesn't give the same result?

[h_d]

On 8/13/2018 at 8:29 AM, Lonely Tears said:

Is Affinity Designer any easier for achieving solid pixels?

Yes, if what you want is a crisp solid edge to an object.

This is vector circle in Designer with a diameter of 30mm at 100%:

and this is the document view enlarged to just over 12000%:

 

I've also attached a pdf exported from the document. Just over 5kb and again, crisp as a very crispy thing. If this is the effect you want to achieve, then try Designer.

circle.pdf