Chapter1：Creating Tileable Texture Maps in Photoshop
In this first chapter you will learn how to create tileable texture maps from any photo or image using a variety of valuable Adobe photoshop techniques. When we offset this map, we can see..
So we should repair it. First, we duplicate this layer and then we just going to invert that with 【ctrl+i 】。
Then we can blur this with a Gaussian blur：
Then we adjust the levels to get some really dark and some brights
Then use saturation to make black and white.
Change the layer to'soft light'，and maybe you can try some other styles:
Change the lightness again with levels.
Make a duplicate of background here then going to collapse these
Choose one then feather
Ctrl c ctrl v move to this place:
Use mask, eraser and something others to repair it:
Use the same skill to repair these place: blending things slowly over time.
When you have done all these repair, you offset this picture again, to your original photo. And then, you have a nice tileable map for our stone.