jaseg/matelight
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added variables for brightness and gamma factor

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jaseg 2014-02-18 21:36:35 +01:00
parent 03bf7d9d49
commit bd5b1b6267
1 changed files with 7 additions and 1 deletions
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8
host/matelight.py
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@ -13,6 +13,12 @@ DISPLAY_HEIGHT = CRATES_Y*CRATE_HEIGHT
CRATE_SIZE = CRATE_WIDTH*CRATE_HEIGHT*3
FRAME_SIZE = DISPLAY_WIDTH*DISPLAY_HEIGHT
# Gamma factor
GAMMA = 2.5
# Brightness of the LEDs in percent. 1.0 means 100%.
BRIGHTNESS = 0.2
dev = usb.core.find(idVendor=0x1cbe, idProduct=0x0003)
def sendframe(framedata):
@ -22,7 +28,7 @@ def sendframe(framedata):
channel is ignored.
"""
# Gamma correction
framedata = (((framedata/255) ** 2.5) * 255).astype(np.uint8)
framedata = (((framedata/255) ** GAMMA) * BRIGHTNESS * 255).astype(np.uint8)
for cx, cy in product(range(CRATES_X), range(CRATES_Y)):
datar = framedata[cy*CRATE_HEIGHT:(cy+1)*CRATE_HEIGHT, cx*CRATE_WIDTH:(cx+1)*CRATE_WIDTH, :3]
data = datar.flat