#N canvas 0 0 654 372 10; #X text 452 8 GEM object; #X obj 8 275 cnv 15 430 80 empty empty empty 20 12 0 14 -233017 -66577 0; #X text 39 278 Inlets:; #X text 38 325 Outlets:; #X obj 8 236 cnv 15 430 30 empty empty empty 20 12 0 14 -195568 -66577 0; #X text 17 235 Arguments:; #X obj 7 60 cnv 15 430 170 empty empty empty 20 12 0 14 -233017 -66577 0; #X obj 449 77 cnv 15 170 250 empty empty empty 20 12 0 14 -228992 -66577 0; #X text 453 60 Example:; #X obj 514 254 cnv 15 100 60 empty empty empty 20 12 0 14 -195568 -66577 0; #N canvas 0 0 450 300 gemwin 0; #X obj 132 136 gemwin; #X obj 67 89 outlet; #X obj 67 10 inlet; #X obj 67 41 route create; #X msg 67 70 set destroy; #X msg 142 68 set create; #X msg 132 112 create \, 1; #X msg 198 112 destroy; #X connect 2 0 3 0; #X connect 3 0 4 0; #X connect 3 0 6 0; #X connect 3 1 5 0; #X connect 3 1 7 0; #X connect 4 0 1 0; #X connect 5 0 1 0; #X connect 6 0 0 0; #X connect 7 0 0 0; #X restore 519 293 pd gemwin; #X msg 519 274 create; #X text 515 253 Create window:; #X obj 450 167 cnv 15 160 80 empty empty empty 20 12 0 14 -24198 -66577 0; #X obj 451 84 gemhead; #X text 71 31 Class: pix object; #X obj 510 85 bng 15 250 50 0 empty empty pix_load 20 8 0 8 -262144 -1 -1; #N canvas 0 0 587 366 image 0; #X obj 77 48 inlet; #X obj 77 344 outlet; #X obj 77 205 pix_image ../../doc/gem/examples/data/fractal.JPG; #X obj 223 55 inlet; #X msg 223 123 open \$1; #X obj 223 100 openpanel; #X connect 0 0 2 0; #X connect 2 0 1 0; #X connect 3 0 5 0; #X connect 4 0 2 0; #X connect 5 0 4 0; #X restore 451 113 pd image; #X text 63 246 ; #X text 56 338 Outlet 1: gemlist; #X text 63 292 Inlet 1: gemlist; #X obj 451 263 pix_draw; #X text 516 105 open an image; #X text 50 12 Synopsis: [pix_a_2grey]; #X text 29 66 Description: convert a pixel to greyscale based on alpha ; #X text 39 87 Assuming that you have an image in the gemList (for instance \, loaded in with pix_image) \, pix_a_2grey will convert the image into a greyscale.; #X text 39 129 If alphaVal > 0 \, then it will convert to greyscale where ever the pixel alpha is greater than the alphaVal.; #X text 38 189 If alphaVal = 0 \, then nothing happens.; #X text 38 159 If alphaVal < 0 \, then it will convert to greyscale where ever the pixel alpha is less than the -alphaVal.; #X text 22 210 Obviously \, this will work for RGBA-images only.; #X obj 451 226 pix_a_2grey; #X floatatom 523 206 4 -1 1 2 alpha-thresh - -; #X text 63 305 Inlet 2: : alpha-threshold (-1..0..+1); #X text 512 118 (TIFF \, ..); #X msg 523 171 0.5; #X msg 479 170 -0.5; #X obj 451 137 pix_coloralpha; #X connect 10 0 11 0; #X connect 11 0 10 0; #X connect 14 0 17 0; #X connect 16 0 17 1; #X connect 17 0 36 0; #X connect 30 0 21 0; #X connect 31 0 30 1; #X connect 34 0 31 0; #X connect 35 0 31 0; #X connect 36 0 30 0;