Photoshop brush problem. with pictures.

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  1. #1
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    Photoshop brush problem. with pictures.

    So iv had this problem before and i have no idea how or why it happens.

    any help would be really appreciated.

    so picture one is a close up of an image im making, and has kind of blocky fade ins, and if i paint over these transitions with a soft round, it will have a hard edge and just look terrible.

    any uncounted this or know how to solve it?

    also, sorry if this the wrong section, didnt realy know where to put it.

    Name:  problelm one.jpg
Views: 404
Size:  19.4 KB

    Name:  problelm two.jpg
Views: 370
Size:  22.0 KB

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  3. #2
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    Quote Originally Posted by NyeAlexandaFrayne View Post
    so picture one is a close up of an image im making, and has kind of blocky fade ins, and if i paint over these transitions with a soft round, it will have a hard edge and just look terrible.
    Both pictures are extremely dark and small, hard to say anything about this.
    Try uploading something bigger...

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  4. #3
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    Here is a bigger picture with me painting some random lines on it with a soft round.

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  5. #4
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    Please post something lighter, just try to reproduce the problem with black paint on a white background?

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  6. #5
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    #1 -http://conceptart.org/forums/forumdisplay.php?f=78

    #2 - I can`t quite say I understand what your problem is, but maybe this will help - have you checked if you`ve locked the layers transparency? Maybe that`s why it`s retaining hard edges, b/c with this option on you can paint inside the shape of that layer, not outside of it. Also, have you masked the layer?

    Name:  lock.jpg
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  7. #6
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    haha sorry, il post up my whole image.

    I had locked some layers before yes, but im not painting on them layers now, if i paint over the top of everything on a new layer, its like these little gradients interfere with it. its hard to explain.

    and i cant replicate it, it just happens every now and again on certain images, i have no idea how it does it.

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  8. #7
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    You may be experiencing banding issues on your monitor. The images look ok on my monitor which is why I can't understand what you are referring to.

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  9. #8
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    yup - I don`t see any jagged lines either. :/

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  10. #9
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    hmmmm, well, i guess thats a good thing then, i still see them but ohh well haha, i appreciate the help!

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  11. #10
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    I see some of the banding as well in that image. Unfortunately I'm not sure how to fix it. I get it sometimes too on my screen, but usually just ignore it. It's not a huge issue as it is barely visible (especially with such dark values); if anything it just adds a bit of texture. I sometimes notice that it is more or less apparent at different zoom levels (like some weird percentage vs say 100 or 50%).

    Your screen might also not be properly calibrated--those values are pretty dark which is why a lot of people can't see the banding. The screen I'm on now I know makes dark values a touch lighter, which is probably why I can see the banding.

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  12. #11
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    I worked it out. i though i would click through all my layers and see if the turned off.

    it turned out to be a gradient, more specificaly a black and see through gradient.

    is this a common thing, is there a way around it?

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  13. #12
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    Best thing to do to avoid banding on gradients is to make sure "dither" is selected for one. The other thing is to add a little bit of noise to the gradient. Like 2-5% should be enough to break up the uniform pixels yet keep a smooth gradient. The gradient will be more optically mixed than value mixed.

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  14. #13
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    I usually try to fix these things with either blur or smudge tools, works sometimes. If it doesn't help there's a good chance it's a monitor issue, although I do see the lines on this one.

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    Perhaps working in 16-bit mode if possible would help here. Or use of linear working space (blend colors in gamma 1.0). But most likely it's a monitor issue.

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  16. #15
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    It is for sure your monitor.
    You are working with extremely dark values that appears lighter on your screen ( cheap screen? over boosted luminosity? whatever.. ) and what you get is a lack of information in this range ( creating banding ) caused by a low quality screen and the default gamma set to optimize lighter values ( cause the eye sees lighter ones better ).

    It is dangerous because your values are wrong actually :/

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  17. #16
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    The problem was solved just by manually dong the gradient with a soft round, it was just using the gradient tool that i got the banding. Someone else suggested to me that i should increase it to 16-bit or whatever, il look to do that next time. I don't really think it was the monitor personally, my monitor is pretty good, and it also looked the same on my vaio and my friends screen. but never mind, its gone now haha

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  18. #17
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    well your picture is still extremely dark so I still think you have something to do with your screen.. unless you'll add brighter values later (?) but the very subtle details you're painting are barely readable actually.

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  19. #18
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    The finished piece can be seen on by website or my sketchbook, i personally don't think its too dark myself but i may play around with it a little bit funshark.

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