In addition, converting RGB to CMYK without knowing the lithographer’s print profile is risky business and is probably not giving you an accurate preview. I suggest you leave the conversion to the lithographer and request a proof (in the US it is often referred to as a Contract Proof). Base your decision and options on that. I need to convert an image from CMYK to RGB in python. I used Pillow in this way: img = Image.open('in.jpg') img = img.convert('RGB') img.save('out.jpg') The code works, but if I convert the same image with Photoshop I have a different result as shown below:-The only operation done in photoshop is to change method from CMYK to RGB. Go to Edit > Color Settings. Under Working Spaces, from the CMYK menu, choose U.S. Web Coated (SWOP) v2. Click OK. Now do the CMYK conversion by going into Image > Mode > CMYK Color. If you get a message about profiles, check Don’t show again and click OK. Click on the image on the right to make sure it’s active. In the “Source” section, click the “Browse” button and select the folder that contains the images you want to convert. 3. Make sure the “Destination” is set to “Save and Close”. 4. Under the “Action” drop-down menu, select the action you want to perform on the images (in this case, “Convert to CMYK”). 5. CMYK is a device-dependent color space and arbitrarily converting CMYK colors to RGB serves no purpose, as even if they were created with a specific color profile/ output device in mind, a different device (printer or whatever) would still interpret it differently and mix up the inks. that is the whole point. These programs have RGB to CMYK converters which is fine for images but that's it. When designing for print, starting in the CMYK colorspace is a must. Most printers will not accept RGB files unless it's kinkos and getting files converted to CMYK can cost $60-$100 an hour. vyI5. RGB to CMYK in Photoshop: Converting RGB to CMYK is a good way to keep the colors in your images looking accurate, but it can be a bit of a challenge. There are a few different methods you can use to get the job done, and the best way to find out which one works best for you depends on the type of image you’re working with. In terms of gamut, CMYK is completely subsumed by RGB: there are no colors that are in CMYK that are not in RGB, so converting to RGB is less destructive. I have done a lot of work in print that uses photographs of artifacts and paintings where the goal is to color-match the printed version to the actual object. In the “Source” section, click the “Browse” button and select the folder that contains the images you want to convert. 3. Make sure the “Destination” is set to “Save and Close”. 4. Under the “Action” drop-down menu, select the action you want to perform on the images (in this case, “Convert to CMYK”). 5. Well, you can convert the image from CMYK to RGB, then tell it to use the "not so black anymore" color as reference as black. In Photoshop you can use the Image -> Adjustments -> Levels. Select the black eyedropper tool and click on the "not so black area". The area will now be completely black. BUT - this will do changes to the levels of the To create an Action for your colour conversion, open an image in Photoshop, (File > Open) then open the Action panel (Window > Actions). Click on the ‘Create new action’ button at the bottom of the panel. 2. Next, name the action in the text field (‘RGB to CMYK’). Once you have named your action, click on the ‘Record’ button.

convert cmyk to rgb photoshop