Abstract: An image processing apparatus that converts a frame rate by creating a sub-frame from an input frame and outputting the sub-frame, the image processing apparatus includes a generation unit configured to generate the sub-frame from the input frame, a calculation unit configured to calculate a feature amount of brightness of the input frame, and a control unit configured to perform control so as to reduce luminance of the sub-frames generated by the generation unit based on the feature amount calculated by the calculation unit.

Abstract: A color signal processing apparatus which performs a linear matrix transformation includes: an approximate coefficient storage unit that stores approximate coefficients of approximate expressions, which approximate values of the matrix coefficients, respectively, and in which a value of a first color among three primary colors of RGB is made a variable, a matrix coefficient calculation unit that calculates 3×3 matrix coefficients according to an input RGB signal by substituting a value of the first color in the input RGB signal for the approximate expressions given by the approximate coefficients readout from the approximate coefficient storage unit; and a conversion unit that performs color conversion by multiplying the input RGB signal by the matrix coefficients calculated by the matrix coefficient calculation unit, and outputs color-converted RGB signal.

Abstract: An image processing apparatus that converts a frame rate by creating a sub-frame from an input frame and outputting the sub-frame, the image processing apparatus includes a generation unit configured to generate the sub-frame from the input frame, a calculation unit configured to calculate a feature amount of brightness of the input frame, and a control unit configured to perform control so as to reduce luminance of the sub-frames generated by the generation unit based on the feature amount calculated by the calculation unit.

Abstract: The present invention relates to an image display apparatus for forming an image with a plurality of luminescent spots to be precisely aligned in a matrix. For example, a spacer disposed between an electron source and a face plate causes luminescent spots on the face plate spaced unevenly. The luminescent spots spaced unevenly will produce a visual unevenness in luminance which deteriorates the quality of produced image. By modifying the quantity of light of luminescent spots spaced unevenly, the visual unevenness in luminance is compensated.

Abstract: A signal processing method comprises the steps of: inputting three signals specifying a color of one pixel; and generating four signals from the input three signals, wherein each of said four signals represents intensities of four different colors to display a color of one pixel by mixing colors, wherein said generating step includes a first converting step of converting the input three signals to two signals representing intensities of two colors among the four colors and a signal representing intensity of a mixed color obtained by mixing (a) the four colors or (b) a plurality of colors among the four colors; and a second converting step of converting the signal representing intensity of the mixed color to a plurality of signals representing intensities of a plurality of colors including at least other two colors different from the two colors.

Abstract: In the image display device according to the present invention, control is performed such that a condition of not using a subsidiary pixel which corresponds to a specific color among the subsidiary pixels constituting a first pixel is selected as a condition for signal processing to output a signal for designating intensity of each subsidiary pixels constituting the first pixel, and a condition of using a subsidiary pixel which corresponds to a specific color among the subsidiary pixel constituting a second pixel is selected as a condition for signal processing to output a signal for designating intensity of each subsidiary pixels constituting the second pixel adjacent to the first pixel in the first direction.

Abstract: A signal processing method comprises the steps of: inputting three signals specifying a color of one pixel; and generating four signals from the input three signals, wherein each of said four signals represents intensities of four different colors to display a color of one pixel by mixing colors, wherein said generating step includes a first converting step of converting the input three signals to two signals representing intensities of two colors among the four colors and a signal representing intensity of a mixed color obtained by mixing (a) the four colors or (b) a plurality of colors among the four colors; and a second converting step of converting the signal representing intensity of the mixed color to a plurality of signals representing intensities of a plurality of colors including at least other two colors different from the two colors.

Abstract: The present invention relates to an image display apparatus for forming an image with a plurality of luminescent spots to be precisely aligned in a matrix. For example, a spacer disposed between an electron source and a face plate causes luminescent spots on the face plate spaced unevenly. The luminescent spots spaced unevenly will produce a visual unevenness in luminance which deteriorates the quality of produced image. By modifying the quantity of light of luminescent spots spaced unevenly, the visual unevenness in luminance is compensated.

Abstract: In the image display device according to the present invention, control is performed such that a condition of not using a subsidiary pixel which corresponds to a specific color among the subsidiary pixels constituting a first pixel is selected as a condition for signal processing to output a signal for designating intensity of each subsidiary pixels constituting the first pixel, and a condition of using a subsidiary pixel which corresponds to a specific color among the subsidiary pixel constituting a second pixel is selected as a condition for signal processing to output a signal for designating intensity of each subsidiary pixels constituting the second pixel adjacent to the first pixel in the first direction.

Abstract: The present invention relates to an image display apparatus for forming an image with a plurality of luminescent spots to be precisely aligned in a matrix. For example, a spacer disposed between an electron source and a face plate causes luminescent spots on the face plate spaced unevenly. The luminescent spots spaced unevenly will produce a visual unevenness in luminance which deteriorates the quality of produced image. By modifying the quantity of light of luminescent spots spaced unevenly, the visual unevenness in luminance is compensated.

Abstract: This invention can suppress overshoot/undershoot, and can maintain the improvement effect of the leading edge of an edge portion. For this purpose, a second derivative signal generator (1) generates a second derivative signal (s5) on the basis of time-serially input three successive pixels. A second derivative signal suppression unit (2) generates a signal (s8) obtained by suppressing the second derivative signal, and a signal (s9) indicating the sign of the second derivative signal. The absolute values of the differences between the pixel of interest, and its neighboring pixels are computed, and a smaller one of the absolute values is selected as a signal (s14) by a minimum value selection circuit (18). By multiplying the obtained signals (s8, s9, s14) by a multiplier (19), an edge-emphasizing signal (s15) is generated. The edge-emphasizing signal (s15) is added to the signal of the pixel of interest by an adder (20), thus obtaining an edge-emphasized signal s16.

Abstract: The present invention relates to an image display apparatus for forming an image with a plurality of luminescent spots to be precisely aligned in a matrix. For example, a spacer disposed between an electron source and a face plate causes luminescent spots on the face plate spaced unevenly. The luminescent spots spaced unevenly will produce a visual unevenness in luminance which deteriorates the quality of produced image. By modifying the quantity of light of luminescent spots spaced unevenly, the visual unevenness in luminance is compensated.

Abstract: A method and an apparatus for displaying a pointer mark preferable for an application to a presentation system and the like. With a reference point on a display screen being preset, when an arbitrary point is pointed on the display screen, a pointer mark is generated in a direction from the preset reference point to a pointing point related to the pointing and an image (including the pointer mark) displayed on this display screen is transferred to a projector so as to be projected on a large-sized screen.