FIELD: physics, computer engineering.
SUBSTANCE: invention relates to techniques for processing high dynamic range (HDR) image data. Disclosed is a method of processing an HDR image using an integrated circuit (IC) based device. The method includes a step of computing a histogram of logarithmic (log) luminance pixel values in the HDR image. Further, the method includes generating a tone mapped curve based on the histogram. The method also includes computing a log global tone-mapped luminance image based on the log luminance pixel values in the HDR image and the tone mapped curve.
EFFECT: high quality of displayed HDR images.
83 cl, 15 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD AND DEVICE FOR CONVERTING IMAGE DATA | 2014 |
|
RU2582655C2 |
| CODING, DECODING AND PRESENTING HIGH DYNAMIC RANGE IMAGES | 2012 |
|
RU2640717C1 |
| ENCODING, DECODING AND REPRESENTING HIGH DYNAMIC RANGE IMAGES | 2012 |
|
RU2589857C2 |
| METHOD AND DEVICE FOR CONVERSION OF IMAGE DATA | 2015 |
|
RU2592074C1 |
| METHOD AND DEVICE FOR IMAGE DATA CONVERSION | 2012 |
|
RU2554860C2 |
| MULTILAYER COMPRESSION OF VIDEO WITH EXTENDED DYNAMIC RANGE, VISUAL DYNAMIC RANGE AND WIDE COLOUR GAMMA | 2010 |
|
RU2504011C2 |
| IMPROVED HDR IMAGE ENCODING AND DECODING METHODS AND DEVICES | 2013 |
|
RU2652465C2 |
| METHODS AND DEVICES FOR ENCODING HDR IMAGES AND METHODS AND DEVICES FOR USING SUCH ENCODED IMAGES | 2015 |
|
RU2688249C2 |
| METHOD AND DEVICE FOR TONAL DISPLAY OF AN IMAGE BY USING THE PARAMETRIC TONE ADJUSTMENT FUNCTION | 2016 |
|
RU2726290C2 |
| METHODS AND DEVICES FOR ENCODING HDR IMAGES AND METHODS AND DEVICES FOR USING SUCH ENCODED IMAGES | 2015 |
|
RU2667034C2 |
