- Number
- 20190370939
- Published
- 2019-12-05
- Filed
- 2018-06-04
- Assignee
- Disney Enterprises, Inc.
- Inventors
- CHAPMAN; Steven et al.
- CPC
- G06T5/60; G06T5/77; G06T7/90; H04N1/40006; H04N17/02; H04N23/88
- Verdict
- Set aside color correction for uncalibrated materials, generic camera calibration
- Source
- Google Patents · FreePatentsOnline
Abstract
Systems and methods for correcting color of uncalibrated material is disclosed. Example embodiments include a system to correct color of uncalibrated material. The system may include a non-transitory computer-readable medium operatively coupled to processors. The non-transitory computer-readable medium may store instructions that, when executed cause the processors to perform a number of operations. One operation is to obtain a target image of a degraded target material with one or more objects. The degraded target material comprises degraded colors and light information corresponding to light sources in the degraded target material. Another operations is to obtain color reference data. Another operation is to identify an object in the target image that corresponds to the color reference data. Yet another operation is to correct the identified object in the target image. Another operation is to correct the target image.
Background
COPYRIGHT NOTICE
A portion of the disclosure of this patent document contains material to which a claim for copyright is made. The copyright owner has no objection to the facsimile reproduction by anyone of the patent document or the patent disclosure, as it appears in the Patent and Trademark Office patent file or records, but reserves all other copyright rights whatsoever.BACKGROUND
Materials containing images, such as film, degrade over time. As the materials degrade, the colors on the images may degrade at varying rates. For example, what was originally royal blue used across a material may no longer be the same color on a first portion of the material as a second portion of the material. Moreover, the colors of the material may not have been calibrated to a given color map, making color corrections more difficult on a global scale.SUMMARY
Embodiments of the present disclosure include systems, methods, and devices capable of correcting color of uncalibrated images of degraded target material, as well as interconnected processors and/or circuitry, to correct uncalibrated images, including in some examples, by using light information and color reference data.
In accordance with aspects of the present disclosure, a system for correcting color of uncalibrated material. The system includes a non-transitory computer-readable medium operatively coupled to processors. The non-transitory computer-readable medium stores instructions that, when executed cause
Claims
1. A system for correcting color of uncalibrated material, the system comprising: a non-transitory computer-readable medium operatively coupled to processors and storing instructions that, when executed cause the processors to: obtain a target image of a degraded target material with one or more objects, wherein the degraded target material comprises degraded colors and light information corresponding to light sources in the degraded target material; obtain color reference data; identify at least one of the one or more objects in the target image that correspond to the color reference data; correct the one or more identified objects in the target image based on the color reference data and the light information; and correct the target image based on the one or more corrected objects.
2. The system of claim 1, wherein the color reference data is selected from a group comprising real-life objects, paint formulations corresponding to a given era when the degraded target material was captured, ink processes corresponding to the given era when the degraded target material was captured, museum-conserved records, and color matching records.
3. The system of claim 1, wherein identifying the at least one of the one or more objects in the target image comprises using object recognition.
4. The system of claim 3, wherein the object recognition weights shapes and patterns of the at least one of the one or more objects more heavily than colors of the at least one of the one or more objects.
5. The system of claim 1, wherein correcting the target image based on the one or more corrected objects comprises weighting a position of the one or more corrected objects to correct the target image.
6. The system of claim 1, wherein the non-transitory computer-readable medium further stores instructions that, when executed, cause the circuitry to generate an index of degradation based on how the one or more corrected objects are corrected.
7. The system of claim 6, wherein the target image based on the one or more corrected objects comprises: averaging the index of degradation for the one or more corrected objects; and correcting the target image based on an average of the index of degradation for the one or more corrected objects.
8. A method for correcting color of uncalibrated material, the method comprising: obtaining a target image of a degraded target material with one or more objects, wherein the degraded target material comprises degraded colors and light information corresponding to light sources in the degraded target material; obtaining color reference data; identifying at least one of the one or more objects in the target image that correspond to the color reference data; correcting the one or more identified objects in the target image based on the color reference data and the light information; and correcting the target image based on the one or more corrected objects.
9. The method of claim 8, wherein the color reference data is selected from a group comprising real-life objects, paint formulations corresponding to a given era when the degraded target material was captured, ink processes corresponding to the given era when the degraded target material was captured, museum-conserved records, and color matching records.
10. The method of claim 8, wherein identifying the at least one of the one or more objects in the target image comprises using object recognition.
11. The method of claim 10, wherein the object recognition weights shapes and patterns of the at least one of the one or more objects more heavily than colors of the at least one of the one or more objects.
12. The method of claim 8, wherein correcting the target image based on the one or more corrected objects comprises weighting a position of the one or more corrected objects to correct the target image.
13. The method of claim 8, further comprising generating an index of degradation based on how the one or more corrected objects are corrected.
14. The method of claim 13, wherein correcting the target image based on the one or more corrected objects comprises: averaging the index of degradation for the one or more corrected objects; and correcting the target image based on an average of the index of degradation for the one or more corrected objects.
15. A server system for correcting color of uncalibrated material, the system comprising: a non-transitory computer-readable medium operatively coupled to processors and storing instructions that, when executed cause the processors to: obtain a target image of a degraded target material with objects, wherein the degraded target material comprises light information corresponding to light sources in the degraded target material and degraded colors; obtain color reference data; identify at least one of the one or more objects in the target image that correspond to the color reference data; correct the one or more identified objects in the target image based on the color reference data and the light information; and correct the target image based on the one or more corrected objects.
16. The system of claim 15, wherein identifying the at least one of the one or more objects in the target image comprises using object recognition.
17. The system of claim 16, wherein the object recognition weights shapes and patterns of the at least one of the one or more objects more heavily than colors of the at least one of the one or more objects.
18. The system of claim 15, wherein correcting the target image based on the one or more corrected objects comprises weighting a position of the one or more corrected objects to correct the target image.
19. The system of claim 15, wherein the non-transitory computer-readable medium further stores instructions that, when executed, cause the circuitry to generate an index of degradation based on how the one or more corrected objects are corrected.
20. The system of claim 19, wherein correcting the target image based on the one or more corrected objects comprises: averaging the index of degradation for the one or more corrected objects; and correcting the target image based on an average of the index of degradation for the one or more corrected objects.