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Scratch

wallpaper generator

h	v
2560	1080

count based

generator

from random import randint

stamp_size=100

# this depends on the image to be stamped on
hofs_max=int((stamp_size/2) * 0.7)
vofs_max=int((stamp_size/2) * 0.5)

# h_step = int(stamp_size * 0.8)
# v_step = int(stamp_size * 0.7)
h_step = int(h_max / h_count)
v_step = int(v_max / v_count)

cmd=""

for v in range(0, int(v_max), v_step):
    for h in range(0, int(h_max), h_step):
        v_pos = v + randint(-vofs_max, vofs_max)
        h_pos = h + randint(-hofs_max, hofs_max)
        rot = randint(0, 360)

        cmd+=f"( ( {stamp_name} {stamp_op}  ) -rotate {rot} -geometry {stamp_size}x{stamp_size}^{h_pos:+}{v_pos:+} ) -composite "

return cmd

dark

light

constant density

generator

from random import randint

# this depends on the image to be stamped on
h_ofs_max=int((stamp_h/2) * 0.7)
v_ofs_max=int((stamp_w/2) * 0.5)

h_step = int(stamp_h * 1.5)
v_step = int(stamp_w * 1.5)

cmd=""

for v in range(0, int(v_max), v_step):
    for h in range(0, int(h_max), h_step):
        v_pos = v + randint(-v_ofs_max, v_ofs_max)
        h_pos = h + randint(-h_ofs_max, h_ofs_max)

        cmd+=f"( ( {stamp_name} {stamp_op}  ) -geometry {stamp_h}x{stamp_w}^{h_pos:+}{v_pos:+} ) +repage -composite "

return cmd

dark

composition test

convert -size 1000x1000 xc:white -compose Multiply  \( -alpha set -channel A -fx 0.7 m.png \) -composite composite.png 2>&1>/dev/null
echo ./composite.png