Hi! Thanks in advance for any advice you can give. This is a composite satellite image from google maps. The actual size is about nine feet tall at 300 dpi. It's going to be shown at an exhibition at my school as the background for some photos I took at various locations in this area. I'm planning to desaturate and maybe lighten it some to make the photos pop.
So, my question is about the differently-shaded boxes you can see there. They're artifacts of the satellite imagery from google--I guess those sections of the map were photographed at different times of year. I think they're distracting, though, so I'm trying to blend them into the rest of the map, or vice-versa. I've tried messing with the saturation of selected areas, but that is not working. I've also tried selecting certain colors in different areas and changing them individually, but I think I'm doing something wrong with that process. Regardless, I'm not even sure whether that will work. It doesn't have to be perfect...I feel like if the colors are a little inconsistent, it will be okay, but the sharp lines need to go.