Luminance gradients and non-gradients as a cue for distinguishing reflectance and illumination in achromatic images: A computational approach.
Alejandro LererHans SupèrMatthias S. KeilPublished in: Neural Networks (2019)
Keyphrases
- image irradiance
- color constancy
- image data
- surface reflectance
- illumination conditions
- image gradient
- input image
- gamma correction
- single image
- intrinsic images
- reflectance properties
- varying illumination
- viewing conditions
- lighting conditions
- spectral reflectance
- dynamic range compression
- gradient information
- scene geometry
- image composition
- light transport
- colour images
- multiple light sources
- edge detection
- surface shape
- retinex theory
- photometric stereo
- illumination direction
- shape from shading
- color information
- real objects
- specular reflection
- object surface
- cast shadows
- global illumination
- spatially varying
- light source
- diffuse reflection
- image sequences
- lighting direction