KR950009487A - Image processing method and apparatus using general-purpose computer - Google Patents

Abstract

The present invention relates to a method and an apparatus for image processing using a general-purpose computer. The present invention converts signals extracted from a color filter on a solid-state image pickup device into a digital form directly when the color solid-state image camera is used for image processing using a computer, and inputs color information to a connected general purpose computer. To extract. Therefore, the present invention not only simplifies the hardware configuration of the image processing system using a computer, but also directly extracts the R.G.B.signal, thereby synthesizing the R.G.B.signal into a composite video signal and again, the R.G.B. It provides an effect that can improve the resolution by preventing a decrease in resolution inevitably occurred in the process of extracting information.

Description

Image processing method and apparatus using general-purpose computer

Since this is an open matter, no full text was included.

1 is a circuit diagram showing a conventional image processing apparatus using a general-purpose computer, FIG. 2 is a conceptual diagram showing a color filter arrangement of a single-plate color solid-state imaging device (CCD), and FIG. 3 is an image processing apparatus using a general-purpose computer according to the present invention. Block diagram showing.

Claims (7)

A method for image processing a signal photographed by a color CCD camera having a color filter in which a plurality of color components in a constant array are arranged alternately every line using a general purpose computer, wherein the photographed signal is converted into digital data and connected. Applying to the general-purpose computer; Obtaining two adjacent signals and difference components passing through odd lines of the color filter among the digital data and calculating them as first color component signals; Obtaining a difference component between two adjacent signals passing through an even line of a color filter among the digital data and calculating the difference component as a second color component signal; Calculating a composite component of two adjacent signals passing through an odd line of a color filter among the digital data and calculating them as luminance component signals; And calculating red, green, and blue color signals from the luminance component signal, the first color component signal, and the second color component signal. The image processing method according to claim 1, wherein the red signal (R) is calculated as in the following equation. R = C _R + αY Where C _R is the first color component signal, Y is the luminance component signal, and α is a constant constant value. The image processing method using a general-purpose computer according to claim 2, wherein the constant value α is 0.12. The image processing method according to claim 1, wherein the green signal (G) is calculated as in the following equation. G = YC _R + C _B Here, Y is a luminance component signal, C _R is a first color component signal, and C _B is a second color component signal. The image processing method according to claim 1, wherein the blue signal (B) is calculated as in the following equation. B = -C _B + β (YC _R ) Where C _R is the first color component signal, C _B is the second color component signal, Y is the luminance component signal, and β is a constant constant value. 6. An image processing method using a general-purpose computer as claimed in claim 5, wherein the constant value β is 0.2. An apparatus for processing a signal photographed through a color CCD camera having a color filter in which a plurality of color components in a constant array are arranged alternately every line, wherein the captured signal is converted into a digital form and applied to a connected general purpose computer. Means for doing so; Means for generating a first color component signal from a difference between two adjacent signals passing through the odd line of the color filter among the input digital data; Means for generating, as a second color component signal, a difference component between two adjacent signals passing through the even line of the color filter among the input digital data; Means for generating, as a luminance component signal, a composite of two adjacent signals passing through an odd line of a color filter among input digital data; And means for obtaining pure color signals by adding and subtracting the first color component signal, the second color component signal, and the luminance component signal to each other. ※ Note: The disclosure is based on the initial application.