摘要:
An encoded bit stream having a frame rate of 24 Hz or 23.976 Hz and a progressive format for both NTSC and PAL is recorded on a recording medium. An encoded stream reproduced from the recording medium is supplied to a decoder 20. In the decoder 20, the encoded stream is decoded and 24p or 23.976p video is obtained. A video converting portion 25 converts the reproduced video into a display video in accordance with the display format of a monitor 26. For the NTSC range, 29.97i or 59.94p display format can be used. For the PAL range, 25i or 50p display format can be used.
摘要:
An image sensor apparatus is disclosed. The image sensor apparatus includes an image sensor for generating pixel data corresponding to a scene under a scene illuminant. The image sensor apparatus also includes a memory for storing color correction information corresponding to a subset of candidate illuminants. A color correction module in the image sensor apparatus derives an illuminant-dependent color correction matrix based on the color correction information corresponding to the subset of candidate illuminants and applies the illuminant-dependent color correction matrix to the pixel data to generate a color corrected digital image.
摘要:
A wide gamut RGB digital display, such as an LCD display, digital television, printer, or any other suitable display, includes wide color gamut configuration message control logic that is operative to indicate, to an image source provider, wide gamut RGB indication information and wide color gamut format definition information that indicates that wide gamut RGB color data is to be received by the wide gamut RGB digital display. The wide gamut configuration message control logic is also operatively responsive to wide gamut confirmation information that is received from the image source provider. The wide gamut RGB digital display also includes logic that is operative to display received wide gamut RGB color data that was received in response to the wide gamut RGB indication information and the format definition information.
摘要:
Adaptive filtering techniques are set forth that improve video playback performance. A color similarity metric is computed for source pixels undergoing an image transform operation to determine color values of a target pixel location. The value of the color similarity metric defines what algorithm is used to determine the color values of the target pixel location from the source pixels. While the computation of the color similarity metric introduces additional instructions for each pixel, going against conventional wisdom, enormous performance savings by avoiding unnecessarily complex sets of interpolation instructions where a simpler instruction set suffices, outweighs any such cost from additional instructions.
摘要:
Various aspects can be implemented for two dimensional representation of a color space. In general, one aspect can be a method for representing a color space, the method includes obtaining first, second, and third primary colors for the color space. The method also includes providing a first virtual triangle, the first virtual triangle includes a base, a height, and an area defined by height * base /2. The method further includes assigning the first primary color as the height of the first virtual triangle. The method also includes assigning a sum of the second and third primary colors as the base of the first virtual triangle, whereby the intensity of the first primary color can be adjusted by modifying the area of the first virtual triangle. Other implementations of this aspect include corresponding systems, apparatus, and computer program products.
摘要:
An image processing device comprising - a synchronization unit (25) for generating a luminance (Y') from the sum of pixel signals R, Gr, Gb, B, for subtracting the R pixel signal and the B pixel signal from the sum of the Gr pixel signal and Gb pixel signal so as to generate a first color difference (C1), and for calculating a difference between the R pixel signal and the B pixel signal to generate a second color difference (C2), - a pseudo-color suppression unit (31) for performing pseudo-color suppression of the first color difference (C1) and/or the second color difference (C2), - a color space conversion unit (37) for converting the luminance Y', the first color difference (C1), the second color difference (C2), into a predetermined color space to generate YUV color information.
摘要:
A method converts an input pixel (IPi) defined by three values (ri, gi, bi) of input primaries (RI, GI, BI) into N drive values (DSi) for driving N sub-pixels (SPi) of a pixel (PIi) of a displaydevice (DD). The N drive values (DSi) have a valid range (VR) wherein their values occur. The N sub-pixels (SPi) emit light defined by N display primaries (DPi) of which at least four are independent. M resulting display primaries (RDi) are used (10) wherein a group of ones of the N display primaries (DPi) which are combined into a combined display primary (CDi) are replaced by the combined display primary (CDi). A first multi-primaryconversion (MPC1) is performed (11) on the input pixel (IPi) to obtain resulting drive values (DRi) for the M resulting display primaries (RDi). It is checked (12) whether the M resulting drive values (DRi) have values in the valid range (VR). If the resulting drive value (DRi) of at least one of the M resulting display primaries (RDi) has a value outside the valid range (VR) the method allocates (12) a fixed value (FVi) to the resulting drive value (DRi) outside the valid range (VR), and selects (13) K out of the N display primaries (DPi). The selection includes the ones of the N display primaries (DPi) which were combined into a combined display primary (CDi) but not the display primaries (DPi) associated withthe resulting drive value (DRi) outside the valid range (VR). The integer K is larger than 3. Finally the method performs (14) a second multi-primary conversion under a constraint (CO2) for the ones of the N display primaries (DPi) being combined into a combined display primary (CDi) in the first multi-primaryconversion (MPC1).
摘要:
The first image processing apparatus that converts a first image having a plurality of pixels and expressed in a first colorimetric system constituted of a plurality of color components with each of the pixels corresponding to one of the color components to a second image expressed in a second colorimetric system constituted of a plurality of color components which are different from the first colorimetric system, comprises: a similarity decision-making device that determines levels of similarity manifesting at a processing object pixel in the first image along a plurality of directions; and a new component generating device that generates color information representing at least one of the color components constituting the second colorimetric system at a pixel in the second image corresponding to the processing object pixel through a weighted addition executed by using predetermined coefficients to add together a plurality of sets of color information selected from color information present at the processing object pixel and color information present at pixels near the processing object pixel, based upon results of a decision made with regard to the levels of similarity by the similarity decision-making device.