// Selection of images out of a collection with 15 800x800x8bit // images. There is one image each with only 255, 254, 253 as a // value. And there is one image each with one value each out of // 250, 251, 252. No other image contains value greater than 249. // one img with some_cell SELECT img[0:252,0:252] FROM earth_32 as img WHERE some_cell ( img[700:799,300:399] = 252c ) // two imgs with some_cell SELECT img[0:252,0:252] FROM earth_32 as img WHERE some_cell ( img[700:799,300:399] = 252c OR img[700:799,300:399] = 251c ) // three imgs with some_cell SELECT img[0:252,0:252] FROM earth_32 as img WHERE some_cell ( img[700:799,300:399] = 252c OR img[700:799,300:399] = 251c OR img[700:799,300:399] = 250c ) // one img with all_cell SELECT img[0:252,0:252] FROM earth_32 as img WHERE all_cell ( img[700:799,300:399] >= 255c ) // two imgs with all_cell SELECT img[0:252,0:252] FROM earth_32 as img WHERE all_cell ( img[700:799,300:399] >= 254c ) // three imgs with all_cell SELECT img[0:252,0:252] FROM earth_32 as img WHERE all_cell ( img[700:799,300:399] >= 253c )