A Computational Model of Afterimages based on Simultaneous and Successive Contrasts

09/13/2017
by   Jinhui Yu, et al.
0

Negative afterimage appears in our vision when we shift our gaze from an over stimulated original image to a new area with a uniform color. The colors of negative afterimages differ from the old stimulating colors in the original image when the color in the new area is either neutral or chromatic. The interaction between stimulating colors in the test and inducing field in the original image changes our color perception due to simultaneous contrast, and the interaction between changed colors perceived in the previously-viewed field and the color in the currently-viewed field also affects our perception of colors in negative afterimages due to successive contrast. Based on these observations we propose a computational model to estimate colors of negative afterimages in more general cases where the original stimulating color in the test field is chromatic, and the original stimulating color in the inducing field and the new stimulating color can be either neutral or chromatic. We validate our model with human experiments.

READ FULL TEXT

page 6

page 7

page 8

research
05/21/2021

Multi-color balance for color constancy

In this paper, we propose a novel multi-color balance adjustment for col...
research
12/16/2022

On Human Visual Contrast Sensitivity and Machine Vision Robustness: A Comparative Study

It is well established in neuroscience that color vision plays an essent...
research
04/03/2022

Forward and backward mapping of image to 2D vector field using fiber bundle color space

We introduce the concept of a fiber bundle color space, which acts accor...
research
04/05/2020

Nonparametric Data Analysis on the Space of Perceived Colors

Moving around in a 3D world, requires the visual system of a living indi...
research
11/29/2017

Optimizing colormaps with consideration for color vision deficiency to enable accurate interpretation of scientific data

Color vision deficiency (CVD) affects 8.5 different visual perception of...
research
02/26/2019

Chromatic Adaptation Transform by Spectral Reconstruction

A color appearance model (CAM) is an advanced colorimetric tool used to ...
research
02/26/2019

Chromatic Adaptation Transform by Spectral Reconstruction (Preprint)

A color appearance model (CAM) is an advanced colorimetric tool used to ...

Please sign up or login with your details

Forgot password? Click here to reset