Endoscopic system for converting primary color images into hue, saturation and intensity images
First Claim
1. An endoscopic system for obtaining a color picture by combining three primary color images with each other, said system comprising:
- image converting means for converting said three primary color images into hue, saturation, and intensity images;
means for reproducing said three primary color images from said converted hue, saturation, and intensity images;
histogram processing means for obtaining a histogram based on at least one of said hue, saturation, and intensity images obtained by said image converting means; and
then performing at least one of ameans for stretching or shifting said histogram, or both.
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Abstract
An endoscopic system provides a color picture by combining three primary color images with each other. The endoscopic system comprises an image converting device for performing a process of converting the respective primary color images into hue, saturation, and intensity images, and a process of reproducing three primary color images from the converted hue, saturation, and intensity images; and a histogram processing device for performing a process of obtaining a histogram based on at least one of the hue, saturation, and intensity images obtained by the image converting device, and executing at least one of a process of stretching the histogram and a process of shifting the histogram.
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Citations
10 Claims
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1. An endoscopic system for obtaining a color picture by combining three primary color images with each other, said system comprising:
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image converting means for converting said three primary color images into hue, saturation, and intensity images; means for reproducing said three primary color images from said converted hue, saturation, and intensity images; histogram processing means for obtaining a histogram based on at least one of said hue, saturation, and intensity images obtained by said image converting means; and
then performing at least one of ameans for stretching or shifting said histogram, or both. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An endoscopic system comprising:
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a first device for converting red, green and blue images of a color picture into a hue image, a saturation image, and an intensity image, and reconverting said hue, saturation, and intensity images into red, green and blue images; and a mechanism for processing a histogram of at least one of said hue and saturation images by a histogram equalization process such that average frequencies at respective values of said at least one of said hue and saturation images are constant. - View Dependent Claims (8, 9, 10)
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Specification