GIMP :: Break Up Political Map Into Individual Images
Sep 18, 2011
I have an image of political boundary map that I want to break up so that I have an individual image for each unit, such that I could combine them back together and get the original map. For purpose of illustration, let's say it's a US state map.
I know that I could take the original image, erase everything but Washington State to alpha, save that as Washington, then undo back to the beginning, erase everything but Oregon to alpha, save that as Oregon, undo, etc, until I had all 50 states, all in the same position as on the original map. I could then easily create images of arbitrary groups of states by just combining the images of the individual states I wanted to be in the group.
But getting to that point would take 50 manual erasing for a state map, and many more on my actual map. Is there a way to break up the map in an automated way?
The map image has the boundary all in one color that isn't otherwise present in the image, so it's easy enough to select just the boundary .
I'm new to GIMP. I want to use it to create/test colour (or greyscale) separations for a woodcut, but I'm finding it hard.
For example I have attached a black and white image. kirsty.JPG (84.7K)
Number of downloads: 3
I open the image in GIMP, then from Image I choose mode - indexed, 4 colours. So far so good as this gives me the 4 greyscale levels I need to create a two block woodcut. Now I use the 'select by colour' tool to find the first colour, and I paste this into a new layer. That works fine. Then I select the next colour and try to paste that into a second new layer, but it doesn't work. It produces another layer called 'Floating Selection (pasted layer)' and won't paste the second or third layers.
How can I separate the 4 layers into individual images??
I need to be able to take a design that is in outline format such as this for an example:
[URL]
Converting it to an outline is really easy and I have no problems with that. However, I need each individual piece of the design to be separated out as an individual object as certain pieces would get cut out of different materials.
What is the easiest way to convert this design from one big outline design, to individual components?
In Lightroom 4.1 when rating (flags, stars or colors) a selected group of images all images selected will have the same flag applied. For instance if I select 10 images to view in the survey mode to compare and select 1 to be flagged as rejected all 10 will be flagged rejected, not just the one. Is there a way to turn this off to select a group of images and flag each differently?
How to break the PDF file into images? There should be settings in Photoshop CS 6 that imports PDF file and break it into images. I have a short instruction:
2. Open the file in Photoshop. 3. A new window should open to Import PDF. Click on images, not pages import pdf into Photoshop.doc 4. Select all the files shown (shift + click), Click O.K. Four files should open on your screen.
I have 3020 (three thousand and twenty) individual .jpg files that are 72x90 pixels each, and the images have borders. I would like to make this lot of images arranged into a hi-res wallpaper (my current resolution is 1680x1050, but I would like it a little larger for possible future larger resolutions), without gaps, placed starting horizontally in alphabetical order.
This might seem like an odd request, but I'm stumped on how to do it. I wouldn't mind if someone did this arrangement for me, but I would also like to know how to perform it myself, as I would like to do it again in the near future.
We have recently installed Photoshop cs6 on two Mac Pros. On one of them, Photo merge is erasing parts of the individual images while stitching. The part of the original image that is covered by masking, is also erased when the mask is disabled. The merged image generally comes out fine, however, this problem can make it much more troublesome if one needs to adjust the combined image.
On the second Mac, Photo merge works the way that it seems to work in all examples I´ve found online - the individual images retain all their pixels under the mask.
The method we´re using is Layout: Auto, with "blend images together" as the only checked box.
I have a page of clipart symbols. Illustrator recognizes that they're all separate... but how can I convert them in a batch process to individual symbols?
I followed the tutorial linked below to successfully create cartoon text.
My Macbook was then updated to Lion and I checked I had the latest version of GIMP and have been trying all morning to create some more text in the same manner.
However no matter what I do when I select the layer that contains the single letter and I try to rotate it nothing happens?
If I do Alpha to Selection the selection rotates but then I cant do anything with it, stoke fill etc?
To clarify this is what I do:
Create a word select a letter in the word ctrl-x ctrl-v select new layer name the new layer to match the letter just cut and pasted ensure that layer is selected choose rotate tool ....no rotation takes place?
This is probably a really really simple question but I can't for the life of me find how I can find out an individual image size from multiple images on a canvas. eg I have 3 photos i want to arrange 1 large and the other two next to it half the size. How can I edit individual image size on the canvas as when I select the image on a sperate layer I want to resize it just resizes the entire canvas and not the individual image
I'm trying to make a logo consisting of a bunch of simple shapes which are all individual layers. All of these layers are on top of a transparent canvas. I'm not sure if canvas is the right word, but basically what I mean is that I launched GIMP and made a new image that's 512x512 filled with transparency, and by default that became a layer titled background which I consider to be the canvas of my entire Image.
I can't seem to draw on new layers anymore. I've been trying to make new layers filled with transparency and draw on them with the free select tool, ensuring that the opacity is not 0 and that the layer is selected, but its drawing on the background layer rather than the layer I made to draw on. So now when I try to adjust the position of the layer, the shape I drew stays in the same spot because its not part of the layer.
I have a GIF image that I need to add something to, but I don't want to add it to every single individual layer. Is there a way to add it over or behind the entire GIF so that it remains static while the GIF's frames cycle - like a watermark or something?
Or if not, is there maybe a script-fu that copies and merges a selected layer over every other individual layer automatically, without messing them up?
I know I'll probably have to just end up manually adding it to each layer, (so many layers...).
I have two images that I didn't create, but need to be re-sized. A wide gradient bar with rounded-corners and a box with rounded corners (attached). I suspect I may need to recreate these in GIMP (unless there's another way).
When I have a photo that has come out portrait rather than landscape which is a normal case the rotate function seems to cut off some of the two sides of the photo. If I want to rotate it what I call correctly I use Gnome Image Viewer.
I have a problem, been trying to solve it for many days. I would like to 'batch process' many images. I have loads of PNGs with tranparent backgrounds, I love the auto-crop feature, I'd like to automatically do this to hundreds of images. Basically these images have a small picture in the middle, with lots of blank space around them, I'd like to get rid of this space. It would take really long to autocrop each one manually.
Until recently Gimp has either supported transparency of .png image files or automatically added an alpha channel to the image. This I don't know. I do a lot of rendering and have always been able to take a .png or convert any image type to a .png, create a path, and delete everything outside of the path and end up with a transparent background.
But something has changed where I must now manually add an alpha channel to a .png image in order to end up with a “transparent background”. what changed in Gimp that I can no longer just erase or delete a selected area of a png resulting in a transparent area?
I've recently installed GIMP. It is a bit daunting for me at this stage but I'm getting there. My main interest is enhancing photos.
Is there a way to stitch two images together? I can't find any reference to this.
Also, is there an index type search facility to find information on a specific topic? The manual is good but a key word search facility would be very useful. Again I can't find one..
