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Step 5Creating a palette.
Creating a palette:
1) For this step, you don't want to mess around with your image, so make sure that it is saved and then click File -> New. When the warning dialog comes up, click Lose Changes. You did save everything already, didn't you? :)
2) The New Image dialog box will appear (shown below). Just leave the size and everything as default, and make sure that either 24 Bit RGB or Indexed Palette are selected. Either will work fine.
3) The first thing you need to do is shrink your palette down to the number of colors that you intend to use. Click Palette -> Set Palette Size (shown below). When the dialog box (shown below) pops up, it should show the number of colors as 256. You need to change that value to the number of colors that you intend to use, which in this example is 10. Change it to 10 and click OK. As before, the amount of colors that you are using for your project may differ.
4) Note that the large rainbow of colors going down the left hand side of your screen has been cut down quite a bit. You should now see colors numbered from zero to nine (shown below). This palette starts at black, works through some colors, and ends at gray. You need to change these to match the colors you're going to use.
5) Click Palette -> Palette Editor (prev. image shown below).
6a) The palette editor (shown below) will allow you to change the values of those colors to whatever you want. Click the first color in the palette on the left hand side (black) to edit that color. If you are the type of person who just wants to wing it, simply click around the color box (use the boxes to either side of the square to get close to the color you want) until you are close to the color that you want to use.
NOTE - Do not click OK until you have edited each color in the palette!
If you don't want to wing it, you can simply enter the color values into the text boxes on the right. The easiest thing to do is change the hex value to the color that you want. These values can be obtained by using color picker software on a saved image or website, or by loading each image up in mtPaint and using the eyedropper tool on it. The color picker software saves a ton of time, so that's what I'd recommend, though I'm not going into those details here. I have actually done that already, and the approximate hex values for most of the Post-It sets are shown on their own step in this Instructable.
6b) To change the hex value, highlight the current value and replace it with the new one (shown below). You must keep the number sign ( # ) in the value, or it won't work! In this example, if you wanted to use canary yellow, you would change #000000 to #FCF0AD
NOTE - The color won't change as soon as you enter the hex value - you need to click in any of the other boxes (I use the Value box right above Hex) to see it. This is all commented in the images below.
NOTE - Do not click OK until you have edited each color in the palette!
7) Work your way down each palette value color on the left hand side, changing them to the updated colors. In this example, I'll use the Sunbrite and Aquatic sets (shown below). You don't need to worry about the order that you enter the colors. We will sort them in a bit.
8) When you have updated every color on the palette, click OK. On the left hand side of the window you should see the palette has now changed to the colors that you entered in.
9) Click Palette -> Sort Colors. Here's where it gets fun. How we sort the colors has a huge impact on how the final mosaic comes out. What I like to do is save a few variations of the palette, pre-sorted. For this example, select Hue and then click OK.
Note that the palette colors now are in some sort of order (shown below).
10) Click Palette -> Save As. Name this one something like Post-It - HUE (shown below) and click OK. Just leave the file format as GPL.
11) Repeat steps 9 and 10 and sort for Luminance and save it as Post-It - LUMINANCE. You can do this for all of the other options as well, but we'll stop here for this example.
This step is probably the biggest hassle, but the nice thing is that you can keep these palette files forever and use them for future projects.
1) For this step, you don't want to mess around with your image, so make sure that it is saved and then click File -> New. When the warning dialog comes up, click Lose Changes. You did save everything already, didn't you? :)
2) The New Image dialog box will appear (shown below). Just leave the size and everything as default, and make sure that either 24 Bit RGB or Indexed Palette are selected. Either will work fine.
3) The first thing you need to do is shrink your palette down to the number of colors that you intend to use. Click Palette -> Set Palette Size (shown below). When the dialog box (shown below) pops up, it should show the number of colors as 256. You need to change that value to the number of colors that you intend to use, which in this example is 10. Change it to 10 and click OK. As before, the amount of colors that you are using for your project may differ.
4) Note that the large rainbow of colors going down the left hand side of your screen has been cut down quite a bit. You should now see colors numbered from zero to nine (shown below). This palette starts at black, works through some colors, and ends at gray. You need to change these to match the colors you're going to use.
5) Click Palette -> Palette Editor (prev. image shown below).
6a) The palette editor (shown below) will allow you to change the values of those colors to whatever you want. Click the first color in the palette on the left hand side (black) to edit that color. If you are the type of person who just wants to wing it, simply click around the color box (use the boxes to either side of the square to get close to the color you want) until you are close to the color that you want to use.
NOTE - Do not click OK until you have edited each color in the palette!
If you don't want to wing it, you can simply enter the color values into the text boxes on the right. The easiest thing to do is change the hex value to the color that you want. These values can be obtained by using color picker software on a saved image or website, or by loading each image up in mtPaint and using the eyedropper tool on it. The color picker software saves a ton of time, so that's what I'd recommend, though I'm not going into those details here. I have actually done that already, and the approximate hex values for most of the Post-It sets are shown on their own step in this Instructable.
6b) To change the hex value, highlight the current value and replace it with the new one (shown below). You must keep the number sign ( # ) in the value, or it won't work! In this example, if you wanted to use canary yellow, you would change #000000 to #FCF0AD
NOTE - The color won't change as soon as you enter the hex value - you need to click in any of the other boxes (I use the Value box right above Hex) to see it. This is all commented in the images below.
NOTE - Do not click OK until you have edited each color in the palette!
7) Work your way down each palette value color on the left hand side, changing them to the updated colors. In this example, I'll use the Sunbrite and Aquatic sets (shown below). You don't need to worry about the order that you enter the colors. We will sort them in a bit.
8) When you have updated every color on the palette, click OK. On the left hand side of the window you should see the palette has now changed to the colors that you entered in.
9) Click Palette -> Sort Colors. Here's where it gets fun. How we sort the colors has a huge impact on how the final mosaic comes out. What I like to do is save a few variations of the palette, pre-sorted. For this example, select Hue and then click OK.
Note that the palette colors now are in some sort of order (shown below).
10) Click Palette -> Save As. Name this one something like Post-It - HUE (shown below) and click OK. Just leave the file format as GPL.
11) Repeat steps 9 and 10 and sort for Luminance and save it as Post-It - LUMINANCE. You can do this for all of the other options as well, but we'll stop here for this example.
This step is probably the biggest hassle, but the nice thing is that you can keep these palette files forever and use them for future projects.
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