I’m not sure this will help, but remember that PS only shows marching ants on a selection for those pixels it has selected with greater than 50% opacity. Since the tolerance of the magic wand is driven by the eyedropper tool, you may not always be able to see what you are, in fact selecting.
What *I* do, whenever I work with the magic wand, is I click on the Channels Palette and create an alpha channel out of my selection and inspect it. Some folks do the same with Quick Mask, but I find that viewing the selection in the channels palette gives a better representation of exactly what was selected.
Peace,
Tony
Thanks Tony,
There is no problem in selecting what I want.
After the selecting with the magical wand there is no way to fill the selection with antialiasing. This is my problem.
Please try this:
– create a circle
– fill it with e.g. green
– deselect
– select the circle with the magic wand (only to have a selection with the magic wand) – fill the selection with e.g. blue and anti-aliased on. no way… antialiased on or off.. the result is always the same.
The magic wand is a all or nothing selection, unlike colour range selection, quick mask using soft brush, third party products like Knockout. If you save your selection and view the channel you will see that everything is either black or white, no greys except for one or two pixels at edges if antialiasing is on. If there are truly no greys at edges, you have a problem. Try deleting your prefs.
The marquee tool makes a selection based upon what you draw with it. This can be antialiased or not. The magic wand makes a selection based upon the underlying image. If that image — specifically the area you clicked on — is not antialiased to begin with, neither will your selection.
Although, you can smooth your selection with Select|Modify| Smooth…
hmm..
this drives me crazy. Of course I can blur the edge or other workarounds, but I need this feature to make web graphics.
Please do me favour and try following:
– make a circle without antialiasing and fill without antialiasing. – delete selection and use magic wand to catch these pixel. (antialiasing in magic wand on) – fill this selection with paint bucket and antialiasing on.
In all my attempts there is no antialiasing after filling with paint bucket.
Because you selected an area that has no antialiasing.
Try making the are with AA on, then MW with AA off. See? you selected the primary colour, bu not the antialiased fringe. Do it again with AA on and you’ll see the difference.
thanks for your help….
i`m not stupid. really. Believe me, I know how to catch all kind of stuff with the magic wand, whether it`s antialiased or not or having 2 or 4 legs.
THATS NOT THE PROBLEM !!!!
I catch a selection with the magic wand, (I don`t care if it`s antialiased or not. The main point is a selection with the magic wand.) This selection should be filled with another colour and antialiasing ON. I can`t fill any selection from the magic wand with antialiasing.
Please check this for me:
– make a circle without antialiasing and use paint bucket to fill circle with colour without antialiasing.
– delete selection (circle) and use magic wand to catch the pixel from the circle again. (antialiasing in magic wand on)
– fill this selection with paint bucket. (antialiasing in paint bucket on)
Do you now have a antialiased circle? If so, I dont understand whats wrong with my preferences. Thank you for checking this out.
Sorry, sometimes the little things are the worst.
pasquale
– make a circle without antialiasing and use paint bucket to fill circle with colour without antialiasing. – delete selection (circle) and use magic wand to catch the pixel from the circle again. (antialiasing in magic wand on) – fill this selection with paint bucket. (antialiasing in paint bucket on)
Exactly my point. Antialiased selections are mostly pixels 100% selected, and a few selected only partly around the fringe. Draw an antialiased black circle and zoom in. You antialiased selection would look just like that as a channel. The grey pixels would be partly selected. Filling the selection would produce an antialiased fill, becasue he selection is itself antialiased. But if your selection is not antialiased, that’s what you would get for a fill.
I’m not tracking 100% here. If you draw a circle, then flatten the image, I cannot see how magic wand does not anti-alias. When I select, then change the color, the circle is filled and anti-aliasing seems preserved.
But if it’s not flattend, as others have mentioned, there is no anti-aliasing because it’s vector.
What am I missing from this equation?
Peace,
Tony
Tony,
You do seem to be missing the message. This will explain it:
In a new white or flattened document, draw a circle with the marque (oval marquee tool) with antialiasing on (in the tool option bar). Fill that circle with black. You get a nice, smoothly antialiased black circle. Why? because you started with an antialiased selection from the marquee tool and filled that with black.
Now select the circle with the magic wand tool using tolerance 1, antialiased. Fill the selection with light blue. You’ll see faint gray ouline, but otherwise get a fairly clean, antialiased ligh blue circle. Why? because you started with an antialiased selection from the magic wand tool and filled that with light blue.
OK, let’s try it again, but twith antialiasing off for the marquee, but on for the magic wand.
In the end you’ll have an aliased light blue circle, without the faint gray outline. Why? because you selected an area of solid colour without aliased edges — the black circle — which produced an aliased selection. That selection was filled with light blue.
Get it? And do you get it, Pasquale?
because you selected an area of solid colour without aliased edges
Sorry, that should be "…without antialiased edges"
Unless I have misread this thread it looks to me as if Pasquale is saying that he does not get the anti-aliased edge from the MW even when that option is chosen.
That should not be.
Pasquale, did you delete your Photoshop preferences as suggested earlier?
Unless I have misread this thread it looks to me as if Pasquale is saying that he does not get the anti-aliased edge from the MW even when that option is chosen.
BUT, if the area you select via MW does not have antialiased edges, then your selection won’t.
thanks Scott,
this is definetely my last posting in this topic.
You said:
Now select the circle with the magic wand tool using tolerance 1, antialiased. Fill the selection with light blue. You’ll see faint gray ouline, but otherwise get a fairly clean, antialiased ligh blue circle. Why? because you started with an antialiased selection from the magic wand tool and filled that with light blue.
comment:
In web design every pixel is important. I want to catch an existing red antialiased circle and want to change it into a blue antialiased circle with the same dimensions. As you said before, I always get this shitty outline in the former colour. I don`t see any advantage in this. There is no easy way to change the colour of an antialiased circle if the original selection is lost. All tricks like blur afterwards isn`t that good.
you said:
OK, let’s try it again, but twith antialiasing off for the marquee, but on for the magic wand. In the end you’ll have an aliased light blue circle, without the faint gray outline. Why? because you selected an area of solid colour without aliased edges — the black circle — which produced an aliased selection. That selection was filled with light blue.
comment:
Thats the point! I don`t care if the former object was antialiased or not. I want to create a nice antialiased object inside the selection from the magic wand. That`s all, but impossible.
I`m not an expert neither in English nor Photoshop *g*, and maybe there is some point I have missed so far, but these checkboxes antialiasing on and off are really shit.
ok…. there are more important things waiting ….
thank you very much to figure this out.
pasquale
BUT, if the area you select via MW does not have antialiased edges, then your selection won’t.
Actually, the MW will not have an antialiased edge to the selection it makes, when that option for the tool is not checked, and this is regardless of whether the color you are selecting has an antialiased edge or not.
The MW makes 100%-selections of those pixels which fall inside the tolerance setting (contiguously or not), then the edges will be antialiased or not, depending on the option being checked or not.
Pasquale… DUDE… DELETE YOUR PHOTOSHOP PREFERENCES!!!!
Actually, the MW will not have an antialiased edge to the selection it makes, when that option for the tool is not checked, and this is regardless of whether the color you are selecting has an antialiased edge or not.
True, but not on point. I stand by what I have said. Photoshop cannot antialias an aliased image. Anti aliasing is the result of downsampling a bitmap image. Think of drawing an aliased circle 100 pixels in diameter, then downsampling to 25 pixels. You will get some white pixels, some black pixels, and some gray pixels that correspond to the 15 shades of gray available when that pixel used to be 16 pixels. That’s how Photoshop creates an antialiased selection. When you use MW on an aliased shape, there is nothing to downsample from, so antialising is irrelevant.
