Connection
Base URL, credentials and a reachable server.
Product
Product features · PNG Paeth prediction
01
Read the left, upper and upper-left bytes beside the predictor branch so equal-distance choices can be reviewed in the scanline context.
Selection
A model available through the configured endpoint.
Capabilities
Context limits and tool support are determined by the model and server.
PNG Paeth prediction
● ● ●RasterSeer●
A concrete starting point · PNG Paeth prediction ×
def paeth(left, above, upper_left):
if any(type(v) is not int or not 0 <= v <= 255
for v in (left, above, upper_left)):
raise ValueError("byte integers required")
p = left + above - upper_left
dl, da, dc = abs(p-left), abs(p-above), abs(p-upper_left)
if dl <= da and dl <= dc: return left
if da <= dc: return above
return upper_left✳Choose the PNG Paeth predictor from left, above and upper-left byte values.
✓ ChangesReview before applying ↗
Illustrative workspace