GIMP :: How To Change Image To Fit Specific Shape
Jul 15, 2013
How to change the shape of an image to fit a specific shape.
What I'm trying to do is reshape a geometrically patterned rectangular image so that the printed image fits around a truncated cone. I'm trying to use the image to create a stencil for glazing a straight sided pottery cup. I know the circumference of the rim and the circumference of the base of the truncated cone so I need to wind up with the borders of the image having a convex curve at the top with the arc length equal to the rim's circumference, a concave curve at the bottom with the arc length equal to the circumference of the base, and with the end points of both arcs connected with diagonal lines equal to the length of the sides of the cup. In addition, I'd like to preserve the image in it's entirety, but distort it as necessary to fit the borders without cutting any of it out. (I attached a sketch in case my pattern shape description was confusing).
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Apr 5, 2012
I want to select a specific color from within the image, and change all similar colors within that image to a different color. In other words, after using the Color Picker Tool to select a color from the image, I want to take the selected color (and everything in the image that is equal to or similar in color), and change them all to a different color.
I tried using the Path's Tool to create an outline in the image, and changing colors that way, but it changes all the other colors in the selection I don't want to change. I just want to change all colors in the image/selection that are equal to or similar to the selected color. How do I do this?
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Mar 18, 2006
converting an image to a specific sized circle shape. Either by changing the actual shape of pasting a section of the image into a circle.
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Dec 7, 2011
I've had a simple lisp I've been using for years that suddenly disappeared. It required that you identify a block name, tag name, and the value that you want the tag to be. All of this is performed via command line, so it is scriptable. Since I lost it, I've been experimenting with -attedit. This command comes frustratingly close to what I'm looking for, except it only appends an existing tag, or replaces a specific string within the tag; I can't get it to replace the entire tag, regardless of its value.
1> Any lisp routine that does what I describe?
or
2> How to make -attedit replace a tag value without regard to what the value currently is (like a * wildcard)?
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Jul 24, 2011
I'm currently trying to use the text tool so I can color a line of text in two differing colors. However when I highlight the characters I want to change the whole line changes.
How do I change the color of specific characters in a line of text?
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Aug 24, 2012
How to change the colour of a specific object in an image.
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Dec 13, 2013
I'm creating a sprite sheet and I need to move my sprites to a specific location.
For example my sprite is 120x120, so I need to place the 5th animated frame at EXACTLY 120x5=600 pixels from zero or at 600, 0. I can't seem to find a way of doing this in GIMP, it shows me a mouse delta position from where I first clicked?
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Feb 25, 2012
Here when ever i click on the editable poly modifier again this happens, now im pretty sure this is not supposed to happen,
i tried searching the internet and several forums but no results (maybe im just missing some 3dsmax vocabulary so i didnt coin the term for it)
How do i use a specific shape to carve out a primary shape
e.g. putting a sphere inside a box (sphere is protruding from all 6 faces) and carving out the box
Edit: changed the image to a link and added the scene file as an attachmentbutcher_knife.zip
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Dec 26, 2011
I have a jpeg image of a motorcycle on a pure yellow background. I want to make the yellow transparent. Naturally there are a lot of spaces within the motorcycle image that contain yellow.
I followed instructions I found...
Removing the background of an image
1) add an alpha channel to your layer
2) use colors/color to alpha and use the background color
This results in the checkerboard being applied to the motorcycle, not the yellow background. I assume that's okay.
This makes all the pixels with the background color transparent, and those with a close color partially transparent.
Then:
- select the background with the magic wand,
- grow the selection by a couple of pixels to ensure that the border of the sprite is in the selection (the most important work of color-to-alpha is on the border pixels, so they shouldn't be protected)
This selects only the area outside the bicycle, but I don't mind reselecting smaller areas, if I can.
- grow the selection by a couple of pixels to ensure that the border is in the selection (the most important work of color-to-alpha is on the border pixels, so they shouldn't be protected)
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Apr 7, 2012
How can I find all pixels in an image with an exact, specific color? So far, I've only managed to find the pixels matching a pixel I click on; but I wish to find pixels matching a specific color value!
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Sep 26, 2012
What I want to know is if there is a way to make a hotkey or at all save specific options for specific tools. Let's say I'm using the 'Paintbrush, Opacity 70%, Hardness 075, Size 4.00' as my "standard outline tool". Can I some how save that preference (and any other tool such as "Specific Eraser Op. 100%, Hard. 100, Size 10.00) so that I can easily switch between "Ouline Brush" and "Specific Eraser" . Maybe to the 'f-buttons'
I'd like to be able to make maybe 5 specific tools:-Outline Brush
-Small Eraser
-Big Eraser
-Detailed Color brush
-Big Color Brush.
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Feb 7, 2011
I have a square shaped image, wants to cut it into circle. How can I do it? I did it easilly in ms paint, but for gimp it's quite confusing. I tried to draw a circle, but I don't know how to put this image inside the circle. Or maybe just easilly crop as circle, how can it be done?
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Jul 22, 2013
what I want to do is select a shape out of an image and I want everything inside it too. For example it would only select the green outline of the shape, is there a way to also take what is inside it, or delete everything around it?
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Apr 29, 2013
I have a shape (of a splat) and want to use an image to 'paint' it with, so that the image only overlays the shape and the rest of the background that is not part of the shape is transparent - how can I do this.
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May 2, 2012
I’m a long time Photoshop user but recently picked up LR4 to try to fine tune my workflow. I’ve noticed that after importing new files (RAW, I haven’t tried with jpg) into my library as I scroll through them (1-up, not in grid) the preview comes up and then after a second or so the WB changes to a much colder image.
Does LR4 initially preview at specific settings and then change to the individual image settings? Even if so, the final images seem very cool and I feel like I have to up the temp more than I should have to. My previous workflow was to sort in Bridge and then use ACR to import to Photoshop. I feel like I did much less tweaking of my WB this way. I feel like I’m starting from square one with LR4.
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Sep 6, 2012
I am trying to distort/shape a photo to fit into another shape, in the shape of a shield. Its something that would be reused on other pictures.
2 things i would like to do, first is of course as above
the other, is there any way to create like a rubber stamp or a cutting tool, that once I have the shape I want created, I can use that to copy/cut/paste that image shape from other images also ?
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Jul 12, 2012
I have a layer in which I want to crop it-after the cropping I want this layer to have a specific shape-the shape I intend to use is not from the custom shapes list.
Actually it is a type layer.
So I want to use this type layer and with it crop another shape layer, so the latter, takes the form of the later.
How am I going to achieve the above-I tried with a clipping mask but could not do it.
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Dec 28, 2013
How can i pattern a hole on a specific path?
please look at below picture : [URL] ........
I like to pattern a hole on along of the M shape path.
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Nov 5, 2013
i'm trying to build an easy way to create something like the following network graphic in Illustrator:
I basically want to create a brush or some other automatic method for adding a specific shape (in this case a circle) at every point a long a path. It would be nice if I could easily move around points on a path without have to move all of the circles independently.
I tried creating a pattern brush where the circles were the corner elements but depending on the angle of the corner the shape would get distorted.
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Nov 16, 2013
I am using a macbook pro. Every time i go to export an image I have resized, or modified, the name field does not let me use most of the keyboard. Some of the keys work but most dont in that field.
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Jan 9, 2012
I discovered GIMP 2 days ago and I am pretty excited to get started with it. The only problem is that I am a total newbie. I would really like to change the color of this image from black to blue but how to do so and the tutorials that I have found online don't really apply to what I am trying to accomplish.
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Sep 28, 2012
I have a photo of a coffee table that's on an angle. I want to rotate this table so it looks like you're standing in front of it and seeing the front. The problem is the Rotate, Perspective, and Map Object tools don't seem to be able to do it. I also tried a plug-in called EZ Perspective, but that also doesn't seem to work.
At this point, I'm guessing you can't change the perspective of an image (up, down, left, right) because it's flat and not 3D, and no program knows what the other sides would look like. Is that correct, or can I do what I want and just don't know how, yet?
Here's a photo of the image:
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Feb 7, 2014
How to change an element from 1 image and switch it with another from the other image.
Also is it possible to change only a part of the element like the dots on the first left up border to put it on the not the black the other one? or change elements btw those 2 to mix and make a unique one?
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Jun 28, 2012
I am desperately trying to change the Canvas Colour for an image in Gimp 2.8.
At the moment in displays in black and grey squares and when I save the image as a jpg it's black.
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Sep 3, 2011
I have upgraded from centos 5.6 to centos 6.0 to have all of thefeatures of GIMP. How can I change my imagebackground by using GIMP ?
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Jun 10, 2013
I have a large background image and I want to change (lower) the transparency of the header portion. I can select the portion with the rectangle, but after that I'm stuck. I tried changing opacity but it affected the entire image. I tried selecting Layer -> transparency -> add alpha channel, but that didn't do anything that I could see. How do I make the rectangle portion that I selected somewhat blurry?
Note: I did simply blur out the header portion of my image as one solution. But is it possible to add a layer over just the header part of the image and make that layer semi transparent?
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May 8, 2011
Any way to change what colors make up an image. I have a palette of 400+ colors that I'd like the image to be composed of but I can't find a way to convert it to only use those colors. Changing the mode to indexed mode doesn't work since you can only index 256 max colors.
Is there any plug-ins or tools I am missing that can do this? (Basically it will change every pixel in the image to the closest matching pixel from a large [400+ color] palette.
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Aug 28, 2011
How can I change my image foreground / background on GIMP?
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Sep 6, 2012
I am trying to distort/shape a photo to fit into another shape, in the shape of a shield. Its something that would be reused on otehr pictures.
2 things i would like to do, first is of course as above
the otehr, is there any way to creat like a rubber stamp or a cutting tool, that once I have the shape I want created, I can use that to copy/cut/paste that image shape from otehr images also ?
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Dec 29, 2013
what I want is for a single image that has a white background to be changed into an image with a transparent background. Just the white background, not the things in the image. (I mean like when the image is in a word document that has a black background, the image will only show the person inside it and the white background of the image can not be seen.) Is there a way I can do this on GIMP?
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May 23, 2013
I'm new to GIMP. I've used Adobe Photoshop for years an years and no longer have access to the license. So I've been giving GIMP a test drive for a little while. I'm confused as to why when I apply a filter to my image or layer it changes the color to B/W or grayscale? I'm sure this is a relatively easy fix, but most filters I'm using don't have many options and I can't seem to apply the filter "as is". It always changes my whole graphic to grayscale. See "Before & After" attachments.
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