摘要:
A grating-type processing method for a transparent page comprises: scanning the transparent page twice, in the first scanning, taking grammatical interpretation to the page description file of the transparent page, dividing the page into areas, and writing primitive object information and transparent parameters generated into the intermediate file; in the second scanning, reading the primitive objects and the transparent parameters in turns from the intermediate file, and assembling the page dot matrix in each area. A grating-type processing device is also disclosed, which includes a grammatical interpretation unit, a dividing unit, a file memory unit and an assembly unit that processing grammatical interpretation, dividing the page into areas, partitioning the transparent page area and non-transparent page area, and grating-type processing according to the type of page area of the transparent page and the non-transparent page and the primitive object information and the transparent parameters, and assembling the page dot matrix in each area
摘要:
A method for rasterizing transparent pages scans each transparent page twice. The first scanning syntactically interprets a page description file of the transparent page, divides it into page blocks, and writes information of image element objects and transparency parameters into intermediate files. The second scanning reads the image element objects and the transparency parameters from the intermediate files and builds a page bitmap in blocks. A device for rasterizing transparent pages includes interpreting, dividing, file storing and building units. The interpreting unit implements syntactical interpretation. The dividing unit divides pages into transparent and nontransparent page blocks. The building unit implements rasterization according to the transparent or nontransparent page blocks, the information of image element objects and the transparent parameters to build a page bitmap in blocks. The methods and devices herein improve the efficiency of building a page bitmap and decrease memory utilization during generation of the page bitmap.
摘要:
Disclosed is a method and system for automatically testing a raster image processor. The method may identify the correctness of the bitmap output by the raster image processor to be tested by comparing an abstract code of a bitmap generated by the RIP to be tested with that generated by a reference RIP to determine whether they are consistent with each other, so as to identify the correctness and stability of the RIP to be tested. Furthermore, the test samples can be submitted automatically. Thus, the convenience and efficiency are improved with respect to the manual submitting.
摘要:
A method is provided for transmitting a multiple-carrier signal. The method includes modulating data symbols representative of a data signal to be transmitted, which includes a filtering by at least one prototype function using at least two different filtering coefficients, thus providing a modulated signal including a time sequence of multiple-carrier symbols. A hold interval is inserted in front of at least one multiple-carrier symbol of the modulated signal, thus providing the multiple-carrier signal.
摘要:
A method is provided for transmitting a multicarrier signal formed by a temporal succession of multicarrier symbols, which includes: at least one preamble formed by at least three successive multicarrier symbols, known as preamble symbols, including complex-value data elements each associated with a carrier of the signal; and multicarrier symbols, known as data symbols, including real-value data elements each associated with a carrier of the signal. The method includes a carrier-shaping step including filtering the carriers of the preamble symbols using a first prototype filter, and filtering the carriers of the data symbols using a second prototype filter different from the first prototype filter.
摘要:
This application provides a method for trapping. The method comprises: vectorizing a bitmap in a PDF file to retrieve a description regarding paths of the bitmap; intersecting the retrieved paths with other primitives in the PDF file; and trapping results of intersection. This application further provides a device for trapping. The device comprises: a vectorizing module configured to vectorize a bitmap in a PDF file to retrieve description regarding paths of the bitmap; an intersecting module configured to intersect the paths with other primitives in the PDF file; and a trapping module configured to trap results of intersection. The invention in this application can ensure the accuracy of bitmap trapping.
摘要:
The present invention discloses a locking bar anti-theft device for container. It will still be effective in preventing the handle from disengaging from the handle hub even if the rivet is damaged; in addition, an internal structure is utilized so that the structure cannot be damaged, thus enhancing the safety of containers. Wherein a projection is provided on a plane by the side of the rivet hole at the front end of the handle corresponding to the sidewall of the handle hub; a guide groove is provided in the inner surface of the sidewall of the handle hub so as to guide the projection of the handle to enter the cavity of the handle hub; a rotary groove is provided in the inner surface of the sidewall of the handle hub so as to rotate the projection around the rivet after the handle is hinged to the handle hub; the guide groove communicates with the rotary groove; when the handle and the handle hub are hinged by the rivet, the projection is disengaged from the guide groove and enter the rotary groove; when the container is locked, the other end of the handle is fixed after driving the projection to rotate a certain angle inside the rotary groove.
摘要:
The application provides a method for rasterization. According to the method, a primitive may be divided, at a position where a color abruptly changes in the primitive, into a plurality of sub-primitives with continuously and gradually changing colors. Each of the sub-primitives is then rasterized. The present application further provides an apparatus for rasterizing an image. The apparatus may comprise a dividing module configured to divide a primitive at a position where a color abruptly changes into a plurality of sub-primitives with continuously gradually changing colors. Furthermore, the apparatus may comprise a rasterizing module configure to rasterize each of the sub-primitives. The application may improve the speed of the rasterization and the quality of the processed image.
摘要:
The invention relates to a technical field of graphic image processing, especially to a technology for simplifying a complex path. The invention provides a method and a device for simplifying a complex path, to accomplish simplification of any complex path into a simple path of a region described by the complex path. The method for simplifying a complex path comprises: parsing the complex path into a vector linked-list consisted of linked monotonic vectors; dividing each vector in the vector linked-list into vector segments according to intersection points of the vector with other vectors in the vector linked-list; and extracting from all vector segments the vector segments located on a boundary of a region defined by the complex path, and connecting the extracted vector segments according to their location to obtain a simple path. According the method of the present application, a complex path can be simplified to a simplest path defining a region by utilizing node scanning process, such that operations on a vector level for a complex path can be realized.
摘要:
Disclosed is a method and system for automatically testing a raster image processor. The method may identify the correctness of the bitmap output by the raster image processor to be tested by comparing an abstract code of a bitmap generated by the RIP to be tested with that generated by a reference RIP to determine whether they are consistent with each other, so as to identify the correctness and stability of the RIP to be tested. Furthermore, the test samples can be submitted automatically. Thus, the convenience and efficiency are improved with respect to the manual submitting.