Creating HDR Image Using Linear Step-by-Step Contrast Changes
Olena Osharovska, Mikola Patlayenko, Valentina Solodka · 2023
The paper presents results on simulating the creation of an image with an extended dynamic range with a twelve-bit representation of each of the primary colors from a high-definition image, originally represented in the red, green and blue color space by an eight-bit code. The color space of the original image is converted into the space of luminance and color-difference signals, in which a step-by-step uniform increase and decrease in the range of luminance and color-difference signals is performed. The resulting intermediate images are added together to form an extended range. The results showed a subjective increase in image contrast and the emergence of fine details in both light and dark shades. The increase in image detail is objectively shown.