Method and apparatus for color comparison in a digital camera
First Claim
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1. A method for comparing a color of a candidate specimen with a reference color stored in a digital camera, the method comprising:
- capturing a digital image of the candidate specimen;
determining a color in the digital image of the candidate specimen; and
computing the difference between the color of the candidate specimen and the reference color.
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Abstract
A digital camera stores and compares colors. In one exemplary embodiment of the present invention, a color may be captured by and stored in the digital camera and subsequently uploaded to a computing device for use in applications. In another exemplary embodiment, a color associated with a candidate specimen is compared with a reference color stored in the digital camera, the difference between the colors is reported graphically, and a signal is given when the colors differ by less than a predetermined tolerance. Illuminant normalization is employed to ensure accurate color comparisons.
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Citations
35 Claims
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1. A method for comparing a color of a candidate specimen with a reference color stored in a digital camera, the method comprising:
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capturing a digital image of the candidate specimen;
determining a color in the digital image of the candidate specimen; and
computing the difference between the color of the candidate specimen and the reference color. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 18, 20, 21, 22, 24, 25, 26, 27, 28, 29)
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17. A method for comparing a color of a candidate specimen with a reference color stored in a digital camera, the method comprising:
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capturing a digital image of the candidate specimen;
dividing the digital image into a plurality of sub-regions;
determining a color for each of the sub-regions; and
computing the difference between the color of each region and the reference color.
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19. A method for storing a reference color in a digital camera, the method comprising:
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capturing a digital image of a specimen;
determining a reference color in the digital image of the specimen; and
saving the reference color.
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23. A digital camera, comprising:
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an optical system for producing optical images of subjects;
an imaging device for converting optical images received from the optical system to corresponding digital images;
a memory for storing the digital images; and
a controller configured to compute the difference between a first color associated with a first digital image and a second color associated with a second digital image.
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30. A digital camera, comprising:
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means for collecting optical images of subjects;
means for converting the optical images to corresponding digital images;
means for storing the digital images; and
means for computing the difference between a first color associated with a first digital image and a second color associated with a second digital image. - View Dependent Claims (31, 32, 33, 34, 35)
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Specification