OP's understanding of these test patterns is incorrect. 'bradleyland' has already commented on the star chart. I'll talk about the second set [1, 2]. >> As y

OP's understanding of these test patterns is incorrect. 'bradleyland' has already commented on the star chart. I'll talk about the second set [1, 2]. >> As you get closer to the end of the spectrum, you can see that the color depth blends together These images are not testing the "spectrum". These test the gamma curves of the display. With reference to [1], the center squares with checkerboard patterns spatially mix two sets of colors to check if the mixture matches the color shade in the surrounding box. If the gamma curves are tuned correctly, all of the outer and inner boxes should blend. Nearly none of the displays I have tested achieve this and calibration is quite involved. [1] http://www.nies.ch/pic/monitor-1280x1024.png http://www.nies.ch/pic/monitor-1280x1024.png [2] http://www.geek.com/wp-content/uploads/2011/12/REZPIXTEST2.jpg http://www.geek.com/wp-content/uploads/2011/12/REZPIXTEST2.j...