Photoshop :: Unwanted Luminance Blend Around The Edges In CC
Nov 11, 2013
I'm trying to get every pixel value in the black square to 000, and all the white pixels to 255,255,255. I've started out with an 800 pixel square solid 255RGB square and then applied a solid 0RGB black square over the top in a new layer, but as can be seen by the color pickers PSCC is doing an unwanted luminance blend around the edges.
Is there anything I can do to stop it and get a solid black square on a solid white one?
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Oct 22, 2012
I am retouching scanned images. Here is an enlarged portion of one of the images, to show the type of retouching that I need to do. The green dots are part of the image, and the white background is the color of the paper:
In this case, I want to completely remove the brown spot, and I have selected it with the Patch tool. I want to replace the selected area with the edge of one of the other green dots, and the white background.
Photoshop has the tendency to blend in the unwanted color (brown, in this case) into the replacement pixels. How do I avoid that from happening?
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Oct 29, 2012
Say I have an image where I'm attempting to extract a mask from and I've found that one of the channels will serve as a good starting point. Further suppose that I have found that I want to increase the luminance level of pixels in the range of 60 - 65 by 10 luminance levels each:
i.e. all pixels with luminance values of 60,61,62,63,64,65 would, after the operation have luminance values of 70,71,72,73,74,75. Is such a thing possible with Photoshop?
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Aug 22, 2006
I'm attaching a photo, I'd like to be able to "blend" the black backdrop paper into the floor. I've seen that done before, just not sure how people do it. Anyone know? I know it needs cropping, this is a "raw" file, just concerned with blending the paper into the wood.
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Jun 20, 2008
How do I blend the edges of these adjacent images to eliminate the hard line between them?
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Apr 20, 2006
I've got a simple circle shape with some modifications that I need to not blend with the background color. The edges of the circle blend with the background color, but I will be using this image in a game and the background color is the alpha color. If the background color dissapears in the game, but parts of the circle have colors that blend with that background color, it will look very strange. How can I stop the image from blending it's edges (I guess what it's doing is anti-aliasing to make a smooth effect) with the background?
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Dec 5, 2013
This and other elevations have lines between new and existing walls/soffits. Joining doesn't eliminate the line. The existing wall is also in a group.
Is there any way to selectively hide an edge in an elevation?
AutoCAD 2010
AutoCAD LT 2013
Revit Architecture LT 2013
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Jun 5, 2013
I have three layers each with an identical pattern out of which I am trying to make a bigger pattern (for textile printing). Everything lines up but there is a very fine white line between the images. I have tried feathering, blurring, masking and feathering, blending, anything I can find in the online manual and in Photoshop for dummies.
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Feb 4, 2013
How do I make the edges of the top layer blend in with the bottom layer so you cannot tell that there is a line??? I want to make it look like a heart but I don't know how to smoothen the edges to make it look like it is part of the bottom layer so when I merge the layers there is no goofy lines looking like someone cropped another fire picture out...
fire3.xcf (Size: 489.68 KB / Downloads: 38)
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Jan 13, 2013
I know how to blend selection edges of a selection in Gimp 2.8.2, but if I have only one side of a selection that needs blending, what should I do?
Lets say that I have a grey box on a black background and only want to blend the left vertical edge into the background.
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Oct 2, 2008
I have "group1" and inside that group, only one layer: "layer1". The blending mode for "group1" is vivid light and for "layer1" it's "normal".
Now, if I change "group1" to "pass through" and "layer1" to "vivid light" ... the result is completely different, while it should be the same, shouldn't it?
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Mar 17, 2004
What can be done to reduce or alter chromatic luminance qualities in photographic subjects of people (skin tones) and liquids (beverages, water, ice, etc.)?
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Feb 3, 2009
I have 18 pictures that I want to have, for research purposes, EXACTLY the same luminance. The pictures are cut out faces and the background needs to stay white.
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Aug 14, 2012
I'm working on a chart that displays and names a couple hundred color swatches. I have all of their color data in a table, and I want to arrange them by hue and lightness, so I applied the Rec.709 coefficients to my data. This arranges my colors into a natural gradient--except for the reds, which have some glaring misplacement. why .709 coefficients do this, or what coefficients I should use instead?
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Sep 12, 2012
Is it possible to extract raw luminance values from raw image files? Actually, a de-Bayerized flat matrix would be ideal but could (? maybe) deal with a 3 layer RGB matrix -- rather like the output from dcraw, only in PS. Preferably without gamma applied.
What I'd like to do: I'd like to use image stacking for exposure accumulation using "summation" but find that highlights blow out readily. Right now the workaround is to let the highlights go and bring them back with HDR from one (or more) of the original frames, but that's seriously clunky. I'd like a "scaled summation" where a luminance-dependent scaling factor is applied in the sum. I don't yet know how to get there from here in PS (there's a megaclunky way involving dcraw, Matlab, and a stacking program ...), but it seems to me that the first step is to get the luminance info.
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Mar 31, 2006
We're trying to make some visual stimuli for an experiment, and we want to change the hues of the images while keeping the luminance value constant. However, changing the hue always changes the luminance as well. Is there a way to lock the luminance value?
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Mar 26, 2009
I have a set of 25 images that I need to equate on luminance. That is, I need them to have the same luminance mean and distribution. Is it possible to do this using Photoshop? If so, what are the steps?
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Mar 14, 2012
im having trouble getting the fillet edge command to work. Ive never had a problem with it before but now i get <Modeling Operation Error:
geometry or topology at end of blend too complex Failed to perform blend.Failure while filleting.>
why its not working.
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May 2, 2013
When using the blend tool to blend colour between two objects is there a way to see the anchor points so I know where to click the blend tool. I realise the cursor changes when over one but its seems very cumbersome to have to move it around until it changes rather than click directly on one which I could do if I could see it.
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Dec 4, 2013
I'm using Illustrator CC (on a Win7 Pro machine) at a beginner level, probably halfway to intermediate. I'm trying to learn how to blend colors together for highlights of various types (skin tones, clothing, light on objects, etc.) so that when I'm making a graphic for a project I'll have a decent idea of which tool/technique is best for the specific effect I need.
I'm trying to use the Smooth Color option in the blend tool. Late yesterday afternoon I recall creating two ellipses (one of which was a solid fill and one of which was a gradient going from black to transparent) and getting a smooth color transition between the two. It was a much harsher effect than I was looking for so I didn't keep it. This morning, while trying to replicate the same thing, I seem to be unable to use smooth color between two objects if one or more of them has a gradient applied. I only get what you see below, which is a step between the two objects.
I've done searches and found multiple references to blending gradients in this way and have followed those instructions (create the shapes, fill with the gradients, then either click on the Blend tool and click on the center of each shape, or click on Object -> Blend -> Make) but I can't seem to get a Smooth Color blend if either object has a gradient applied. Am I missing an important step somewhere? I'm 95% sure I accomplished it yesterday and nothing has been changed since then.
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May 13, 2013
I have a series of colored rectangles I'd like to blend into a single rectangle with a smooth blend of the colors, like a rainbow or spectrum.
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Feb 3, 2006
I have a series of grayscale images that I'm trying to adjust so that they all have the same--or at least very similar--contrast, luminance, and brightness. When I try to adjust these things, it's always measured relative to the images's starting state rather than to anything objective.
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Mar 17, 2009
I have a Dell 1907 FP Flat Panel Monitor. The controls include a 'Brightness' adjustment. I am trying to set the monitor so that I have a luminance of between 100 and 120 cd/m2. I am using a Spyder 3 Pro display calibration device to set the luminance but the device does not measure luminance. Can anyone tell me what Brightness level my monitor should be set at to achieve a luminance of 100-120 cd/m2?
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Jun 26, 2013
I am trying to blend two different art brushes with different colors using the blend tool. I'm trying to use two fixed-size line segments of the same length and then applying the two different brushes to those segments ( each art brush is a different color). Then I want to blend them the regular way so their colors transition. However, when I do this, the first shape is a different color, but all subsequent blend steps are the color of the second blended shape. Why is this? It doesn't blend the colors for some reason.
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May 11, 2013
When I try and apply a channel to an adjustment of my choosing, I get a red mask across the whole image and the alteration is global as opposed to the selection of the mask if that makes any sense? [URL] ........
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Nov 18, 2012
I want to do some Luminance Smoothing on only the sky, in Lightroom 4. I don't think it is possible so would like to know how to do it in Photoshop if it is possible there?
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Apr 18, 2013
I've occasionally created some tone-mapped pictures from multiple exposure brackets using the Luminance HDR program. But when I import the jpegs exported from Luminance to Xara, their Red and Blue channels appear to get swapped.
I can fix it by using a Live Effect. But why does this happen? Is there a way to losslessly avoid this before importing to Xara? Because Live Effects impose their own resolution limitations on the image.
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Nov 13, 2012
I use quite heavy Luminance noise reduction on my images as they are shot at very high speed ISO...
I adjust this in L4, picture in preview looks as smooth as a babies bottom and perfect...
I then export as a TIF file at Adobe 1998 and when I open it in Photoshop 5 the image is really noisy like I've not done the adjustments at all...
I use a 17inch Macbook Pro with the lastest operating system, this is the second performace issue over the last few week (problems with LB too)...I export my files manually using a card reader as RAW files, from a Canon 5D Mark 3...
Is it worth re-installing?
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Feb 9, 2007
I tried the following in Illustrator,
So basically, I created coloured text inside Adobe Illustrator and however much I zoom into the text, the text always appears to have smooth edges. Once I click on 'Save For Web', the edge all around the text becomes rough and aliased. I chose GIF and PNG, but it still happens. The text is on a transparency background. The same problem applies to images when I am creating a logo.
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Jul 10, 2013
Basically exactly how layer masks behave, except I would like to be able to have full non-destructive editing control over the masking layer (e.g. have it as a smart object). The problem with layer masks is that (AFAIK) only destructive editing is possible.
What I'm after is effectively the same as what a 'luma matte' does in After Effects. Is this at all possible in PS?
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Jun 18, 2013
I thought this was going to be a piece of cake in the new Illustrator CC but I am having a few unanticipated issues:)I need to create some vector tire images with different edges, such as the top one in the image below.So I thought this would be SO easy by simply creating a pattern brush in Illustrator and then using that for the outside. So I created the shape you see in the middle image below and created a pattern brush with this shape.I then created an ellipse and used the new brush for the outline.
All of those are open paths...it has taken the shape and applied it to the outline but has kept each shape separate, so I am not able to fill the circle in black. I could of course go in and manually join each little corner separately where the little shapes meet but this will take FOREVER with all the images I have to do.
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