US 5,317,678 A · Method for changing color of displayed images by use of color components · patentgrep

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Abstract

In order to accomplish a color adjustment capable of determining a color at a high degree of freedom, a variety of color expressions and corresponding input instructions are correlated to reflect the instruction of a color change by a certain expression upon another expression. In order to accomplish a color change considering the changes in the ambience, moreover, each vector of an object color, a light source color, a color texture, an ambient color and an input bias is decided to determine the separated component values of the former three vectors of a picture element value so that the changed color of the picture element value may be determined after the vector change from the separated component values and the changed vectors.

Claims50

Dependent claims

A color changing method for changing color on a display, the method comprising the steps of:

inputting individual picture element values of a color image through an image input device;
plotting the individual picture element values of the color image in a three-dimensional three-primary color space;
displaying the three dimensional three-primary color space including the plotted individual picture element values of the color image;
presuming from the plotted picture element values at least three components, including a bias component which expresses bias of said plotted picture element values from an origin, a light source color component which expresses specular reflection light, and an object color component which expresses diffuse reflection light, from four components including said bias component, said light source color component, said object color component and a color texture component which expresses the distance between a picture element value and a plane defined by said light source color component and said object color component;
determining either three-dimensional positional coordinates of said picture element values in the three-dimensional space, which is defined by said light source color component, said object color component and said color texture component, or two-dimensional positional coordinates of said picture element values in said plane;
selectively changing two of the three presumed components mutually dependently or one of the three presumed components independently;
accomplishing a color change of the color image by using the changed components or component and said positional coordinates;
and,
displaying the color image incorporating the color change on the display.

6 more elements

A color changing method for changing color in a display, the method comprising the steps of:

inputting individual picture element values of a color image through an image input device;
plotting the individual picture element values of the color image in a three-dimensional three-primary color space;
displaying the three-dimensional three-primary color space including the plotted individual picture element values of the color image;
presuming from the plotted picture element values at least three vectors, including a bias vector which expresses the bias of said plotted data from an origin, a light source color vector, and an object color vector which starts from a point displaced from the origin by said bias vector, from among four vectors including said bias vector, said light source color vector, said object color vector and a color texture vector;
determining either three-dimensional positional coordinates of said picture element values in the three-dimensional space, which is defined by said light source color vector, said object color vector and said color texture vector, or two dimensional positional coordinates of said picture element values in a plane which is defined by said light source color vector and said object color vector;
changing the presumed three vectors either collectively or individually;
and,
accomplishing a color change of the color image by using the collectively changed vectors or individually changed vector and said positional coordinates;
and,
displaying the color image incorporating the color change or the display.

7 more elements

A color changing method for changing color on a display, the method comprising the steps of:

inputting individual picture element values of a color image through an image input device;
plotting the individual picture element values of the color image in a three-dimensional three-primary color space;
displaying the three dimensional three-primary color space including the plotted individual picture element values of the color image;
presuming from the plotted picture element values at least two vectors, an object color vector and a light source color vector, which start from a point displaced from an origin by a bias vector, from among four vectors, including the bias vector which expresses bias of said plotted data from an origin, said light source color vector, said object color vector and a color texture vector;
determining the positional coordinates of each of said picture element values in either a three-dimensional space, which is defined by said light source color vector, said object color vector and said color texture vector, or a plane which is defined by said light source color vector and said object color vector;
changing at least said light source color vector;
accomplishing a color change of the color image by using said positional coordinates and said changed vector or vectors;
and,
displaying the color image incorporating the color change on the display.

6 more elements

A color changing method for changing color on a display, the method comprising the steps of:

inputting individual picture element values of a color image through an image input device;
plotting the individual picture element values of the color image in a three-dimensional three-primary color space;
displaying the three dimensional three-primary color space including the plotted individual picture element values of the color image;
presuming from the plotted picture element values at least two vectors including a light source color vector, and an object color vector which start from a point displaced from an origin by a bias vector, from among four vectors including said bias vector which expresses bias of said plotted data from an origin, said light source color vector, said object color vector and a color texture vector;
determining positional coordinates of each of said picture element values in either a three-dimensional space, which is defined by said light source color vector, said object color vector and said color texture vector, or a plane which is defined by said light source color vector and said object color vector;
extracting a pure object color vector by eliminating the influences of said light source color vector from said object color vector;
changing the presumed vectors collectively or changing at least one of them independently on the display by using the extracted pure object color vector;
accomplishing a color change of the color image by using said positional coordinates and the changed vector or vectors;
and,
displaying the color image incorporating the color change on the display.

7 more elements

A color changing method for changing color on a display, the method comprising the steps of:

inputting individual picture element values of a color image through an image input device;
plotting the individual picture element values of the color image to have its color changed in a three-dimensional three-primary color space;
displaying the three dimensional three-primary color space including the plotted individual picture element values of the color image;
presuming from the plotted picture element values at least two components, including a light source color component which expresses specular reflection light, and an object color component which expresses diffuse reflection light from among four components, including a bias component which expresses bias of said plotted picture element values from an origin, said light source color component, said object color component and a color texture component which expresses distance between a picture element value and a plane which is defined by said light source color component and said object color component;
determining positional coordinates of each of said picture element values in a three-dimensional space, which is defined by said light source color component, said object color component and said color texture component, or a plane which is defined by said light source color component and said object color component;
plotting the individual picture element values of a model color image which is placed in a predetermined ambient atmosphere, in said three-dimensional three-primary color space;
presuming from the model color image plotted picture element values at least one of the four components, including the bias component which expresses the bias of said plotted data from said origin, the light source component which expresses specular reflection light, and the object color component which expresses diffuse reflection light and said color texture component which expresses the distance between a picture element value and a plane, which is defined by said light source color component and said object color component;
and,
changing color on the display of said color image to have either an object color changed or said ambient atmosphere changed from the components presumed from said model image and said positional coordinates.

6 more elements

A color changing method for changing color on a display, the method comprising the steps of:

inputting individual picture element values of a color image through an image input device;
plotting the individual picture element values of the color image to have its color changed in a three-dimensional three-primary color space;
displaying the three dimensional three-primary color space including the plotted individual picture element values of the color image;
presuming from the plotted picture element values at least two vectors, a light source color vector, and an object color vector which start from a point displaced from an origin by a bias vector which expresses the bias of said plotted data from an origin, from among four vectors, including said bias vector, said light source color vector, said object color vector and a color texture vector;
determining positional coordinates of said picture element values in either the three-dimensional space, which is defined by said light source color vector, said object color vector and said color texture vector, or a plane which is defined by said light source color vector and said object color vector;
plotting the individual picture elements of a model color image which is placed in a predetermined ambient atmosphere, in said three-dimensional three-primary color space;
presuming from the plotted model image picture element values at least one of the four vectors, including the bias vector which expresses bias of said plotted data from said origin, the light source vector, said object color vector and said color texture vector, which start from a point displaced from the origin by said bias vector;
and,
changing the color of object region on the display in said color image to have either an object color changed or said ambient atmosphere changed from the vector or vectors presumed from said model image and said positional coordinates.

6 more elements

Dependencies are inferred from the claim text.