Patent ID: 11921818
Assignee: SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 15:
16. An apparatus comprising:
one or more processors configured to:
extract a color histogram from an input image represented in an original color space and obtain an original color histogram represented in a target color space;
obtain a transformed color histogram by removing color distortion from the original color histogram;
obtain a color transformation function from the original color histogram and the transformed color histogram;
input the input image to the color transformation function and output a color transformation image; and
perform a transform on a pixel related to the color transformation image to obtain a space transformation image with a minimum target loss value between an output vector of a neural network for one of space transformation images and each of a plurality of candidate class vectors corresponding to recognition results classified in the neural network, the space transformation images being spaced apart from the color transformation image of the original color space by a distance less than a threshold.