GIMP :: Correct Feathering By Subtracting White
Sep 7, 2012
I have some round PNG icons where the pixels are either fully opaque or fully transparent. They look fine on a white background but are no use on a dark background.
E.g. see the orange icon attached. Ideally, the edge of the round icon would be semi-transparent orange so that it would merge nicely into either a light or dark background.
So, is there any tool in the GIMP that can correct the feathering? I.e. subtract the white from the pixels to leave a semi-transparent orange.
I.e. convert...
pure-white -> fully-transparent
light-orange -> semi-transparent fully saturated orange
fully saturated orange -> leave unchanged
temp1.xcf (Size: 6.24 KB / Downloads: 27)
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Nov 6, 2012
I have a picture of a black dog which I want to merge into a black background as seamlessly as possible. I created a layer mask and blacked out the photograph area behind the dog so that the black of the layer beneath shows through. What I want to do now is somehow feather the edge between the dog and the black background to melt the two together rather than having a sharp crisp edge. Can I somehow feather the edge of my layer mask to do this quickly and easily or do I have to do it manually using the smudge tool etc?
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Jun 12, 2012
I'm trying to create 1 pixel wide borders for some web buttons. I've tried to use the GIMP path tool to do this but I can't figure out how to get it looking right. See attached image.
1 - copied from a button I found on a web-page. This is what I want - single pixel horizontal and vertical lines with feathering on the curved bits.
2 - path that I used to generate the images on the right.
3 - 'Stroke Path' with 1px brush size & no antialiasing. Corners are not smooth.
4 - 'Stroke Path' with 1px brush size & anti-aliasing. Straight lines are too fuzzy as they are 2 pixel wide rather than 1.
Is there a way to do this with the path tool or any other way with the GIMP?
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Nov 17, 2005
I have read several article on the ability to us a gray card in a photo and then adjusting the white balance in Camera Raw or CSII. How do you achieve this?
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Jul 24, 2013
I have Photoshop Elements 10, and am trying to print a black and white drawing that was scanned, then sent to me via email. When I print out this image, it has an overall green hue and I cant figure out why. I have the black/grayscale box checked in the advanced print settings, but that has still not fixed my problem.
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Mar 24, 2011
A few photos from my digital camera that I cannot re-take, the pictures are blurry, how would I go about correcting the blurry photographs using gimp?
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Feb 4, 2013
Okay so I'm trying to take the white background off of a picture using the select a color on white, but it takes out a lot or the fur and eyes(it's a picture of a cartoon cat) How can I remove the areas of can from the selection without removing the pieces of cat too.
It's creative commons, so I guess I can post screen shots...
The cat is from [URL]...
A general idea of the selected area
What happens when I take out the selected area
So how can I take the pieces of the cat out of the selected area so when I try to delete the background I don't get an invisible cat?
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Nov 7, 2011
I created a logo and then opened it as a layer so that I can make a website header image. It is shown here [URL] and as you can see the background is an off-white colour. It is probably unnoticeable to many, but I would prefer to get it right. How can I make the background a pure white so that it blends in with the white of the wordpress theme?
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Aug 18, 2011
I am trying to create a 30" 24" poster that contains (12) 3" x 4" photos. I have resized all of the photos from 2.5MB, but the completed poster is only 850kb. I do not think that if I were to print this out to 30" x 24" that it would be 'poster quality'.
when I have the file open I noticed that at the bottom left it has (53.8MB) in parenthesis. create the correct resolution that I need to make sure this poster looks like an actual poster?
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Jan 9, 2012
What is the proper way, using gimp, to correct the orientation of animage?
For example, I just took a shot with one of my cameras where I was holding the camera in a vertical (portrait) orientation. But when I transfer the .JPG to my PeeCee and view it with gimp (or ImageMagick)it is laying over on its sid, in landscape orientation.
To fix this, should I be using Tools->Transform Tools->Rotate or is there a better way? (Actually, I did try doing it that way using gimp, and the results were distinctly unacceptable... some parts of the image got cropped out, and some new transparent parts were added.)
I did try googling around for gimp and"orientation" and/or gimp and "rotate" but didn't find anything enlightening. I also checked the Gimp FAQ and again came up empty.
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Mar 8, 2012
I'm a very new user to GIMP but have been using paint shop pro for quite some time - I still use version 7
Here's the situation: I received a pdf that I want to print so I imported it into gimp. It's 8.5x11 at 100dpi & two pages. So I imported it as two images (not layers) at same resolution settings. White out the unnecessary images go to print and then to printer preferences. 300 dpi is the smallest resolution on my printer so I also select 8.5x11 paper & 'sale to fit.' The resulting image is so large that approx only the top-left quarter of the doc prints.
OK, so in GIMP I go to 'Print Size' change the image resolution to 300 pixels: same result, exactly
Print size isn't it, lets try 'Scale Image' at 300 pixels. Same result again...
I tried both settings above with 'scale to fit' (printer) on & off with absolutely no changes to the printed image... very strange. Is gimp overriding my printer settings? If so how do I correct this?
Interestingly, when I re-sized the images in gimp (or thats what I thought I was doing with 'print size' & 'scale image') the size of the view-able image on the desktop in the application window did not change... the size of the window stayed the same, the zoom percentage did not change & most importantly the image did not change.
Finally, I checked if the original image prints correctly in Adobe Reader: No problem and it prints fine. Unfortunately, while I have what I need, I'm not one to give up that easily and want to know if the issue is the printer, gimp.
Why I can't get the image to print in GIMP at the correct size?
Windows XP Home SP3 - I just reformatted the hard drive last week so everything is a new clean install
Hp Officejet 4215 all-in-one
GIMP 2.4.7
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Nov 30, 2013
I have tried to upgrade my gimp2.8.2 (default in debian distrubuted version at the moment) to 2.8.10 since I read through release notes and realized I could be an even happier user with this version.During installation I found that I missed quite a few bits and pieces, but I installed them when required. (babl, gegle, glib2 e.g.).Eventually I reached the make install stage and it seemed to work ok. However when now opening gimp I can't open files and I lack quite a few filters possibly other menues missing I havn't walked into everything yet. It seems like a folders supposed to be created and refreshed in /.gimp2.8 was not.
I am on debian wheezy linux (7.2), xfce4 deskop.
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Apr 27, 2011
I made a free selection in a photo with a great detail of zoon which took me a lot of time. When I pasted it I noticed that there is a small incorrection that I wanted to retouch.
However the original cut picture has the borders of the selected area brightening but doesn't show any longer the points that I could correct.
Any way of forcing it to edit, allowing me to change slightly the borders?
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Feb 22, 2013
I have a picture that is approximate 5 inches, by 10 inches. I want to blow the picture up to approx. 19x7 inches. But my question is, after I blow it up, and place it on a new image template, how will I know the "final" product will be proportioned correctly (with exact correct proportions as original pic) when I print it out.
Does GIMP "automatically" proportion the image correctly, or is there some mathematical equation/something to figure out the correct equation.
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Sep 23, 2013
When adding/subtracting from an existing selection I often use the wrong option in the selection module in the tool bar. I understand the theory behind the selection process in principal. However, I often end up doing the opposite. Any technique to add/subtract from an existing selection that is more effective than using the instructions suggested by the software help menu.
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May 31, 2013
I have a banner, and some text. I would like to subtract the text from the banner to create a 'cut-out' effect. What's the easiest way to do this on photoshop?
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Aug 27, 2008
Anyone know of a way to subtract text from an existing vector mask? I currently have a solid area of vector mask, and I want to make letter-shaped transparencies in it...
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Jun 3, 2012
I'm trying to extrude a flat polygon so that i can break it up into pieces using volumebreaker. When i'm in edit poly and i extrude , this is what happens: url....I want it to be extruded downwards, but leave the selected area on the top.
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Jul 26, 2013
AutoDesk 2014 . I am currently trying to design in iphone case. So I downloaded a replica iPhone from grab cad:
[URL]
I imported it and formed a solid around it, now I am trying to subtract the phone from the solid so it perfectly fits within the case. It will not let me subtract it though because the phone is a reference block and the square around it is a solid.
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Aug 4, 2011
I have some elliptical solids that were created using the 'loft' command. there are several that form a 'draft tube'. Basically, it is an upside down funnel that bends.
Anyways, I cannot get the sections of the draft tube to union. Also, Autocad will not subtract most of the draft tube solids from the building solid.
JJDRAFT-TUBE-test.dwg
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Apr 12, 2012
I have a solid that was created by extruding a regioned profile. I have made a lofted item (Yellow), that I will have to subtract from the solid (Green) to create a hole. When using the subtract command, I recieve the following error.
"The selected surface was ignored. Surfaces cannot be subtracted from solids or regions. At least two solids, surfaces, or coplanar regions must be selected."
I have tried convtosolid as well & to no avail.
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Dec 17, 2012
I am beginner at 3D modeling, I have to solids and trying to subtract them. I have done it many time on this particular drawing but for some reason it is not working now. Here is my command prompt
Command: _subtract Select solids, surfaces, and regions to subtract from ..
Select objects: 1 found
Select objects:
Select solids, surfaces, and regions to subtract ..
Select objects: 1 found
Select objects:
Dimension disassociated.
Here is an image of what I need to subtract. Why is it not working?
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Oct 18, 2013
I am trying to add some texture to some text by subtracting a grunge pattern from it. I've expanded the appearance of the text, so it is now shapes. However, when I place the texture shape over it and try to subtract it from the letter shapes, it only leaves me with the first letter.
Is there another way to do something like this? I would rather not have to keep subtracting the pattern from each letter individually. I've tried ungrouping the letters, then uniting them in the Paths panel, but it doesn't seem to be working either.
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Sep 17, 2013
I've created a list and want to subtract all the values within it from another variable, and assign it to a new variable. How do I do it?
Basically, I ask for ground level (assigned to variable G1), and then any number of depths beneath that (assign to list LVLLIST), and I want to return the value of the bottom point. So it's all the values in LVLLIST added together and subtracted from G1. And assign it to a new variable BASE.
For example,
G1 = 650.00
LVLLIST = (1.23 23.26 0.13 50.23)
(setq BASE (- G1 LVLLLIST))
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Nov 14, 2013
I have been asked to make the title text larger (drawing are being issued at 1/2 scale, A1 to A3) on a large set of drawings. My solution was to copy the title attribute block to a temporary location, resize the attributes and redefine the block by running a script (scriptpro). Some drawings needed the title line split to next line so I had to move the sheet counter (1 of xx, 2 of xx etc.) which was linked to drawing file name for number with a field/formula.
The diesel expression shown below extracts that number. My problem is I cant figure out how to I can edit this expression to allow for a set not starting at 1. I had used a formula to subtract the difference,but how do you express this to run in a script?
This is my script......
attreq
0
-insert
ftc-gwp-a1-nosheet-stb=ftc-gwp-a1-nosheet-stb
0,0
1
1
0
[code]........
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Feb 27, 2007
I am trying to vignette a posterised photo so that the edge of the pic gradually bleeds off into white. Ive made a new layer and used 100 pixel feathering. The only problem is that the feathered edge shows distinct banding lines particulasrly in smooth areas such as sky.
I considered trying gradient but as I see it , gradients cannot be applied to an oval vignette . I also tried applying gausian blur to the new layer (ie vinette) but that didnt help.
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Dec 2, 2004
Feather does just that. It expand and contracts the selection by the amount of pixels you indicate then applies a gradient to that area to create a soft edge (similar to glows).If you do not want this soft are, don't feather selections. Use Select > Modify > Expand or Select > Modify > Contract to keep a hard edge and alter the size of your selection.
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Jun 11, 2004
I am simply trying to select a backpack from an image and feather the edges. I make my selection try to feather and the selection moves but the image does not feather.
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Aug 19, 2008
I am using CS2 (windows) and still in the learning process. I have the standard suite and do pretty well with InDesign ... not so with Photoshop and Illustrator. I know how to feather all sides of an image. Can someone please tell me how to feather just one side or 2 sides?
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Jul 30, 2008
I've been using Photoshop for several years now and have never had this come up before.. I'm using Photoshop CS... and I used the Feather feature on my last project... closed Photoshop... then I opened Photoshop today and am trying to crop photos.. but the marquee still thinks i'm in Feather mode.. and wont' give me a sharp selection for cropping - it keeps reverting back to rounded corners (like with Feathering).. and won't crop properly... no matter how many times i select the rectangle/square marquee tool...it seems to think Feathering is still "turned on"... how do i get it to "turn off"?
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May 14, 2006
I have PS CS2. I tried to make a fireball I ran into a problem. I had to expand it by 5 pixels after selecting it (it was on its own layer). The selection box was the only thing affected by the transformation. I tried the other transformations and only free transform seems to do anything to it. Feather also does nothing to the selection and I have tried doing these steps on different images but I still get the same results . I know it must be a small setting somewhere or something I might have overlooked, I am even thinking of reinstalling
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