| 摘要 |
<p>A method for preserving spatial detail and color content is performed when adjusting the tone scale of a digital color image. This method comprises the steps of receiving a digital color image, providing a tone scale function for adjusting the tone scale of the digital color image; providing a spatial filter for adjusting the tone scale of the digital color image; transforming the digital color image into a luminance signal and chrominance signals; using the tone scale function, the spatial filter, and the luminance signal to produce an enhanced luminance signal; and using the tone scale function, the spatial filter, the luminance signal, and the chrominance signals to produce enhanced chrominance signals. <IMAGE></p> |
