摘要:
An image processing apparatus includes a parameter setting unit which sets a noise reduction processing parameter for use in noise reduction processing for applying onto an original image signal including a plurality of color components; a correlation arithmetic processing unit which calculates coefficients of correlation between each of the color components in the original image signal; a parameter correcting unit which corrects the noise reduction processing parameter based on the coefficient of correlation; and a noise reducing unit which reduces noise in the original image signal using the corrected noise reduction processing parameter.
摘要:
An apparatus of drawing graphics includes an edge coefficient calculator calculating, from vertex data on vertices of a triangle, edge coefficients of edge functions used to determine whether a pixel is present in an inside region of the triangle, and a bounding box calculator calculating a bounding box of projected images of the triangle on a projection plane based on the edge coefficients. The apparatus also includes a starting point determiner and a traverser. The starting point determiner classifies the projected images of the triangle based on a combination of the edge coefficients for respective sides of the triangle, and determines a scan starting point from a corner of the bounding box based on classification of the projected images. The traverser generates pixel data used in rasterization by scanning the bounding box from the scan starting point.
摘要:
A method for image processing includes receiving a first coordinate in first image data which is a set of a plurality of first pixels, the first coordinate corresponding to a second coordinate in second image data which is a set of a plurality of second pixels, and positional information indicative of a positional relationship among n (n is a natural number equal to or greater than 4) of the first pixels, calculating an address of the first pixels corresponding to the first coordinate on the basis of the first coordinate and the positional information, reading the first pixels using the address, and executing a filtering process on the first pixels read from the first memory to acquire a third pixel to be applied to one of the second pixels with the second coordinate. The second coordinate defines a mapping of the first pixels to one of the second pixels.
摘要:
Embodiments in accordance with the present invention provide methods to record, in a rotating disk storage device, a data block in the unit of a logical sector on a recording medium on which a physical sector including a plurality of logical sectors is formatted. Extra addresses are acquired in a buffer to record write data blocks transferred from a host device. Data blocks are read from the recording medium in the unit of a physical sector. A skip read section discards data blocks having the same data blocks as the write data blocks by removing them from the read data blocks, and sends the remaining data blocks to the buffer. The buffer stores the data blocks in the order of recording in a physical sector.
摘要:
An image processing apparatus, comprising: a pixel generation unit configured to generate parameters of pixels in stamps based on values of typical pixels in the stamps having a plurality of pixels and derivatives of the parameters characterizing the image; a plurality of calculation processing units, each performing image processing of the stamps different from each other based on the parameters of the pixels generated by said pixel generation unit; and a texture processing unit configured to perform processing related to texture data in accordance with instructions from said plurality of calculation processing units, wherein each of said plurality of calculation processing units has a plurality of calculators which perform image processing of adjacent pixels in the corresponding stamp in parallel; and said pixel generation unit supplies the parameters of the adjacent pixels in the stamp which have no dependence to each other, to said plurality of calculation processing units, respectively.
摘要:
An image rendering method includes generating pixels in accordance with graphic information, determining a direction of anisotropy of a footprint obtained by projecting the pixel on a texture on which a set of texels are disposed on uv-coordinates, and executing sampling of a MIP map in accordance with the direction of anisotropy, and executing texture mapping for the pixel. The direction of anisotropy is determined by comparing lengths in at least three different directions of the footprint on the texture.
摘要:
To avoid degradation of performance of a storage apparatus even when access biased to writing or reading of data is performed in a buffer memory that adopts a dual ring buffer system as a data structure. A sector buffer for caching an access request is provided in a DRAM of the storage apparatus. The sector buffer has a first ring buffer (BUF_W) that temporarily holds an external write request for a recording medium in advance of its process to the recording medium, and a second ring buffer (BUF_R) that retains data read from the recording medium according to an external read request for the recording medium. An MPU of the storage apparatus shifts a BPAGE of the BUF_R or BUF_W according to external access patterns to the recording medium to thereby change the buffer sizes of the BUF_R and BUF_W.
摘要:
An image processing apparatus, comprising: a pixel generation unit configured to generate parameters of pixels in stamps based on values of typical pixels in the stamps having a plurality of pixels and derivatives of the parameters characterizing the image; a plurality of calculation processing units, each performing image processing of the stamps different from each other based on the parameters of the pixels generated by said pixel generation unit; and a texture processing unit configured to perform processing related to texture data in accordance with instructions from said plurality of calculation processing units, wherein each of said plurality of calculation processing units has a plurality of calculators which perform image processing of adjacent pixels in the corresponding stamp in parallel; and said pixel generation unit supplies the parameters of the adjacent pixels in the stamp which have no dependence to each other, to said plurality of calculation processing units, respectively.
摘要:
Embodiments of the invention raise the performance of a HDD by controlling the timing of notifying of command completion. In one embodiment, transmission of command completion notifications to a host is managed by a host interface manager. If two data write addresses respectively for two queued commands are adjacent or near to each other, that is, these addresses on the magnetic disk can be accessed without rotational latency, the host interface manager postpones the transmission of a command completion notification (X) concerning the first write command (X). Two command completion notifications (X) and (Y) are performed at a time after the write data (Y) for the next command is transmitted and its write to the medium is completed.