I have this primer whose cover and pages got yellowed by time. I scanned the cover and a couple of pages I want to put in my portfolio. I could manage to make the pages almost entirely black and white while preserving some gray areas of the illustrations. For this I first used IrfanView to convert the images to black and white, then used PP to remove moiré and noise.▼
But the cover is a challenge I have no idea how to overcome. I want to make the cover background white, the blacks to be 100% black, the grays to have their shades preserved and, most important, to preserve the green to black gradient effect in the title.▼Would you please help me with that? TIA!
If this is what you are after, Duplicate the layer, place a white background below the duplicated layer, then right-click to select Object Properties>set blend to RGB channels>Slide the "255" label to the left. This will get you started. From there, various masks and erasing.
Thanks a lot, Mike, that's very very close to what I want!But as I said I only use PP at a beginner level. So I know how to duplicate a layer, select object properties and slide the controls, but I don't know how to "place a white background below the duplicated layer". I searched and found Fix Photos Fast with the Image Adjustment Lab - Corel Discovery Center. I could get almost the same as you, but your result is better.
Try putting a white background layer under the object to be modified.
You mean this way?
Yes, just don't slide all the way to the left. After that, just a little erasing will get the job done.