LDR to HDR Conversion Based on Histogram Extension
| Autor: | Ya-Fan Liu, Yi-Rung Lin, Huei-Yung Lin |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Computer science
business.industry Dynamic range Cumulative distribution function ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION Butterworth filter Color space Image (mathematics) Computer Science::Computer Vision and Pattern Recognition Histogram Range (statistics) Computer vision Artificial intelligence business High dynamic range |
| Zdroj: | ICCE-TW |
| Popis: | We present a method of generating high dynamic range image. Our input is low dynamic range image. We transform an input image into HSI color space, separating the color and intensity information. Then dynamic range of intensity is extended from [0, 255] to [0, 1023] and a Butterworth filter is applied to the histogram which is set as the target histogram to generate a new image allocation. Cumulative distribution function curve of the histogram extends a fixed distance in each round and generates a new histogram which set as a target histogram. Finally, the image is combined with the color information and an inverse tone mapping operator is used to extend the LDR to HDR range. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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