
In a multi-layered file, if you copy channel content using the Copy command instead of the Copy Merged command, you only copy the channel content of the currently targeted layer or layers in your composition.
If your document only contains a flattened Background layer, you can use "Ctrl-C" to copy channel content. I hope that this helps you with CMYK color separation. Thank you so much for watching this tutorial. Make each color of CMYK a spot color and give color to the respective test. Once you place them in illustrator, they will be set to black. You can even label the layers with the CMYK for extra organization. Make sure they are all aligned perfectly. Go to file > place and select your four tips. Press save and check Save transparency in the bottom left corner, and then click OK. Obviously we only have one layer here because I separated the files but we’ll do it for consistency. Uncheck layers so that this is the only layer being saved. Now let’s go to file > save as, and we’ll click on TIFF. Delete your background layer and you will see it is now transparent. Now only the visible black information is selected, hit command+J to create a new layer with just what is selected. Set your fuzziness to the max which is 200 and press OK. Zoom in closely to see the dots, and once you do so, go to select color range, and then using your mouse you’ll see an eye drop tool, and you’ll click on a black area. To do this, go to image > mode > grayscale. Our goal is to have a transparent background. We do this in order to create transparency. Once you’ve completed this process for each of the four colors, we will need to change them to grayscale. As we can see, the image consists of many dots, these show the halftone values you’ll want to zoom in to really see what it looks like. The angle for cyan will be 15, for magenta it will be 75, and for yellow it will be 0, and for black it will be 45. Then frequency can be set to 60, and your angle will be different depending on your CMYK color value. Your resolution area and value of input and output must be the same, in this case, 300 pixels per inch, and method should be used halftone screen.
I prefer separate files, so I will continue our tutorial this way.įor each color go to image mode bitmap, click OK to flatten layers, even though we only have one I’ll press OK just for consistency. If you would prefer to keep all your work in one file, that’s OK to do, in order to keep your work organized. Just keep in mind that your halftone value is dependent on your screen mesh. Once we have each channel as separate files, we can begin making them halftone screens. You can label each file as its respective color.
We can do this by going to edit > paste or command+V. We will then select the entire image, copy > go to edit > copy or command+C > then go to edit > new or command+N and then paste. To set this up, we will separate each of the color channels. You will want to open the channels tab to see each color broken down and how they look when layered over one another. Next, I will go to image mode > CMYK color, again if it is not already set to this, and then click OK. The reason for this is because 300 pixels per inch is standard for print. I will then go to image > image size, and make the resolution 300 pixels per inch if it is not already set to that. To begin, I’m going to open a raster graphic, in this case, a JPEG in Adobe Photoshop. I will begin in Photoshop and make my way to Illustrator to show this process for screen printing purposes. Today I am going to show you CMYK color separation. To do color separations for CYMK in illustrator.
In this short video, I’m gonna show you all the steps