I am taking pictures with a drone and I need ground control points (such as this) for rectifying the images. I used standard vinyl to make the checkerboard pattern. It is terrible. It is reflecting way too much light, especially the white parts, which makes the pattern not visible (a big white bulb is seen). What do you suggest?
First of all I am going to replace white with red. Then, should I get matt vinyl or should I use a permanent matt spray on top of the glossy vinyl? Or is there any colored matt spray? Just remember I need it permanent, these things are going to be outside under the sun and the rain for weeks. The glossy vinyl held perfectly outdoor, just too shiny.