FIELD: image processing.
SUBSTANCE: invention relates to means for the signal reformation for signals of wide dynamic range. Using a processor, an input image is addressed in RGB linear color space. The first image is generated in LMS intermediate color space by applying RGB to LMS color conversion to the image input. A non-linear function is applied to each color component of the first image to generate color components of the second image in LMS non-linear color space. An output image is generated in IPT-PQ color space by applying 3×3 color conversion matrix to color components of the second image. The non-linear function may contain an inversion of an optical-electronic transmission function.
EFFECT: increase in the reformation efficiency.
9 cl, 10 dwg, 2 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| RE-SHAPING OF SIGNALS FOR WIDE DYNAMIC RANGE SIGNALS | 2016 |
|
RU2693687C1 |
| RE-SHAPING OF SIGNALS FOR WIDE DYNAMIC RANGE SIGNALS | 2016 |
|
RU2736103C2 |
| CODING AND DECODING OF A PERCEPTIONALLY QUANTIZED VIDEO CONTENT | 2015 |
|
RU2648634C1 |
| METHOD FOR CONTROLLING IMAGE DISPLAY, DEVICE FOR CONTROLLING IMAGE DISPLAY AND PERMANENT MACHINE-READABLE DATA CARRIER | 2017 |
|
RU2755873C2 |
| VIDEO IMAGE WITH EXTENDED DYNAMIC RANGE DISPLAYING CONTROL | 2016 |
|
RU2659485C1 |
| VIDEO DISPLAY CONTROL WITH EXTENDED DYNAMIC RANGE | 2014 |
|
RU2647636C2 |
| LINEAR ENCODER FOR IMAGE / VIDEO PROCESSING | 2019 |
|
RU2740034C1 |
| IMAGE PROCESSING FOR HIGH DYNAMIC RANGE (HDR) IMAGES | 2013 |
|
RU2580093C2 |
| MULTIRANGE ENCODING OF VIDEO WITH EXPANDED DYNAMIC RANGE | 2019 |
|
RU2790178C2 |
| METHOD AND DEVICE FOR ENCODING AN IMAGE OF A HIGH DYNAMIC RANGE, A CORRESPONDING DECODING METHOD AND A DECODING DEVICE | 2017 |
|
RU2737507C2 |
