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I'm not getting on very well with AP!

I have a coloured photo that I want to put on a duplicate layer and convert to B?W using Document> Colour Format>16 bit greyscale. When I do the the original photo also goes B/W (this doesn't happen in Photoshop). I then want to create further layers and apply filters, at varying settings, to these layers (Detect edges being one of them) and then combine them.

When I do use Detect edges the image becomes a negative! I want a positive!

 

BTW even if I start with a negative the Edges view is still a negative!

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Truth does not need to be protected only lies do.

Mac OS Monterey 12.6.4

AD version 2.3.0

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Hi Jackamus,

 

The Document > Colour Format > 16bit greyscale is for the entire document and not just one layer. To make one layer Black and White you want to use the Black and white Adjustment from the Adjustments tab just next to the Layers tab. To use Detect edges properly you need to create a duplicate of your image use Detect Edges  and then set the Blend Mode of the layer to Subtract. I hope this helps :)

 

C

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I followed both your instructions which seemed to work OK but it is not very intuitive.

Why do I also have a 'Detect edges' image of the colour photo as well as a B/W one? I only want one for the B/W photo.

I have to say that I find adjustment layers too complicated and that one is needed for each effect. Having said that it may not be quite that bad as it leaves the original intact but why do I get the coloured 'Detect edges' as  well?

If voting made any difference it wouldn't be allowed!

Rules are for the guidance of wise men and the obedience of fools.

To be ignorant of world happenings is forgivable - to be willingly ignorant is unforgivable.

Truth does not need to be protected only lies do.

Mac OS Monterey 12.6.4

AD version 2.3.0

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By not intuitive, you probably mean that the feature doesn't work like the equivalent in Photoshop.

You need to understand that this is not a Photoshop product and the designers are trying to correct the way some features work in Photoshop.

I find this particular feature more intuitive that the one in Photoshop.

You need to give yourself some time to learn a better way.

Don't expect all features to work the same across these programs.

Just because a given feature works differently it doesn't necessarily mean that is less intuitive.  :)

2017 27” iMac 4.2 GHz Quad-Core Intel Core i7 • Radeon Pr 580 8GB • 64GB • Ventura 13.6.4.

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By not intuitive I only meant that I could do in Phtoshop what I couldn't do as easily in AP.

Don't misunderstand me I am all for AP.

In Photoshop I have done a great deal of work using 'Find Edges' and  'Trace contour' without using adjustment layers! I am now trying to do the same thing using AP.

If voting made any difference it wouldn't be allowed!

Rules are for the guidance of wise men and the obedience of fools.

To be ignorant of world happenings is forgivable - to be willingly ignorant is unforgivable.

Truth does not need to be protected only lies do.

Mac OS Monterey 12.6.4

AD version 2.3.0

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  • 1 month later...

Hi Jackamus,

 

The Document > Colour Format > 16bit greyscale is for the entire document and not just one layer. To make one layer Black and White you want to use the Black and white Adjustment from the Adjustments tab just next to the Layers tab. To use Detect edges properly you need to create a duplicate of your image use Detect Edges  and then set the Blend Mode of the layer to Subtract. I hope this helps :)

 

C

I'm having another look at this and and following your instructions above I'm getting nowhere.

Here are my steps.

1 Colour photo original Layer 1

2 Adjustments tab - selected Black and White OK. Layer 2

3 Layers>Duplicate OK. Layer 3

4 Filters>Detect edges - I get nothing. The B/W photo is still there but with no filter applied.

If voting made any difference it wouldn't be allowed!

Rules are for the guidance of wise men and the obedience of fools.

To be ignorant of world happenings is forgivable - to be willingly ignorant is unforgivable.

Truth does not need to be protected only lies do.

Mac OS Monterey 12.6.4

AD version 2.3.0

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I'm having another look at this and and following your instructions above I'm getting nowhere.

Here are my steps.

1 Colour photo original Layer 1

2 Adjustments tab - selected Black and White OK. Layer 2

3 Layers>Duplicate OK. Layer 3

4 Filters>Detect edges - I get nothing. The B/W photo is still there but with no filter applied.

I tried this. Is this kind of what you want to do?

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Excellent tutorial video. This was a great help except I only need to go as far as creating the outline. It is a bit more involved than PhotoShop but I can get used to it.

 

My reason for doing this is because I am a cheat! Apart from using AD and AP my hobby is painting with acrylics on canvas. I usually work from photos and to avoid having to draw the image on canvas  I just create an edge detected image and have it printed onto a blank canvas. One of my paintings for a jigsaw company is a 20" x 3" aerial view of the Palace of Westminster with a Lancaster, Spitfire and Hurricane flying over it. Can you imagine how long that would have taken to draw? A few minutes on the computer and £30 for the canvas - its well worth it.

Here is a link to my website.

http://www.classiccarartist.co.uk/

If voting made any difference it wouldn't be allowed!

Rules are for the guidance of wise men and the obedience of fools.

To be ignorant of world happenings is forgivable - to be willingly ignorant is unforgivable.

Truth does not need to be protected only lies do.

Mac OS Monterey 12.6.4

AD version 2.3.0

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  • 2 years later...

I am also an artist and am trying to make AP my default, leaving Adobe altogether. I use the Trace Counter and Find Edges facility to augment scanned in drawings and I use them both a lot, but Detect Edges in AP does not produce the same result and I cannot find a Trace Contour equivalent at all in AP.

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I did give AP a good try but found PhotoShop easier for the same reason. I can get a very good result more intuitively and quickly than with AP.

I have attached the result of the jigsaw painting 20" x 30".

Memorial_flight.afdesign

If voting made any difference it wouldn't be allowed!

Rules are for the guidance of wise men and the obedience of fools.

To be ignorant of world happenings is forgivable - to be willingly ignorant is unforgivable.

Truth does not need to be protected only lies do.

Mac OS Monterey 12.6.4

AD version 2.3.0

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