![]() See the footnote at the bottom of this page for an explanation. You might want to ask me: Why did we have to pixelate image in Photoshop if Illustrator has the same feature? Good question. If you want check the Delete Raster box to delete original bitmap image. If you figured out how many cells you have in a column type this number in Height field. In Width field type in the number of cells in a row (23 in my case). Leave everything to default except Number of Tiles fields. Select your bitmap image and got to Filter > Create > Object Mosaic. Now we are going to finish our mosaic in Illustrator.ģ. Select All (Ctrl+A), copy image (Ctrl+C), go to Illustrator and paste it in a new document. Be sure to select the same color mode for your document as a color mode of your image in Photoshop. ![]() Now we need to place resulted image in Illustrator. Write down your cell size, we will need it later. And it also gives me 16 whole cells in a column (320 px height / 20 px cell size = 16 cells). In my example, width of 460 px divided by 23 cells in a row gives me 20 px cell size. You might want to adjust your image size before pixelating it. You can figure out the optimal cell size for your image by dividing width of your image in pixels by any number between 20 and 30 (this is the number of cells in a row), depending on how detailed your image is and on the density of dots you'd like. My image is 460 px by 320 px and I chose cell size of 20 px for it. In filter dialog box choose cell size big enough to produce a grid of approximately 20-30 squares in a row. See the footnotebelow the tutorial explaining why. We will cheat a little bit in this tutorial: we will use Photoshop to pixelate image.
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