| 摘要 |
Histograms may be generated for composite video signals in addition to various component video data. Both input and output histograms may be displayed simultaneously, and may be dynamically updated while a user adjusts control points which correspond to color correction parameters for color correction. A representation of a color distribution of an image defined by a composite video signal may be generated by identifying high and low values of for each pixel in the image in a composite video color space. A representation of the distribution of the high and low values corresponding to the pixels in the image is generated. The representation of a color distribution may be a histogram. The image may be defined by component video data, such that the component video data for each pixel in the image is converted into high and low values in a composite video color space. The image may be displayed in association with the representation of the color distribution. Color correction may be performed on the image to obtain an output image, for which a representation of a color distribution of the output image also may be determined. The representation of the color distribution of the image may be displayed in association with the representation of the color distribution of the output image.
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