A chart creation method to be used in a system including an image forming apparatus and a control apparatus, the control apparatus and a non-transitory computer-readable medium storing a chart creation control program are provided. The chart creation method includes: creating a print image of a chart; giving instructions to the image forming apparatus to print the chart and measure colors of the chart; obtaining measured color values of the color patches of the chart from the image forming apparatus; and rearranging the color patches of the chart so as to restrict spread of average color values of subgroups of color patches in the chart within a predetermined range. The chart creation method further includes: creating a print image of the color chart including the rearranged color patches, and giving instructions to the image forming apparatus to print the chart and measure colors of the chart.

The present disclosure discloses methods and systems for printing a document having pages with different margins. The method includes receiving a document having a plurality of pages for printing, wherein the document having a combination of pages to be printed in first pre-determined sheets and second pre-determined sheets. A margin value for each page of the document is automatically identified. Based on the identification, one or more pages having margin value greater than a pre-defined margin value is automatically identified. The one or more pages with greater margin value are marked to be printed in the first pre-determined sheets and the remaining pages are marked to be printed in the second pre-determined sheets. Finally, information is sent to a printer to print the one or more pages having a greater margin value in the first pre-determined sheets and to print the remaining pages in the second pre-determined sheets.

A method of compositing layers by grouping the layers into a foreground group and a background group; identifying independent instructions of compositing model for execution independently from the background group and dependent instructions requiring a compositing output of a background layer in order to composite foreground layers; executing the independent instructions on the foreground layers in parallel with compositing the background layers, a first independent instruction storing a corresponding result in a first buffer and a second independent instruction storing a corresponding result in a second buffer; executing a dependent instruction by updating the second buffer using the background compositing output; and determining a compositing output for the foreground group dependent upon contents of the first buffer and the updated second buffer.

To make it possible to suppress a delay of the start of rendering of a page even in the case where image data is included across the band boundary in the page of print data. The image processing apparatus of the present invention is an image processing apparatus that performs rendering by dividing a page into a first area and a second area based on print data and includes: a memory configured to store image data arranged across the first area and the second area; a first render configured to access the image data and to perform rendering by using pixels within the first area of all pixels of the image data; and a second render configured to access the image data and to perform rendering by using pixels within the second area of all pixels of the image data.

In some examples, the disclosure describes a computing device that includes instructions to: position an image with a first aspect ratio within a boundary with a second aspect ratio, select a window that includes a portion of the image and a portion of the boundary, predict transitional pixels into the portion of the boundary based on proximate pixels of the image within the selected window, and generate the transitional pixels into the portion of the boundary.

In an example, an apparatus comprising an image processor is configured to perform edge detection on the image to detect a plurality of edges, automatically identify a path across the image based on the detected plurality of edges, divide the image into two adjacent sub-images based on the determined path, and generate first and second print data to cause the printing device to print the two adjacent sub-images.

The present disclosure discloses methods and systems for printing a document having pages with different margins. The method includes receiving a document having a plurality of pages for printing, wherein the document having a combination of pages to be printed in first pre-determined sheets and second pre-determined sheets. A margin value for each page of the document is automatically identified. Based on the identification, one or more pages having margin value greater than a pre-defined margin value is automatically identified. The one or more pages with greater margin value are marked to be printed in the first pre-determined sheets and the remaining pages are marked to be printed in the second pre-determined sheets. Finally, information is sent to a printer to print the one or more pages having a greater margin value in the first pre-determined sheets and to print the remaining pages in the second pre-determined sheets.

Provided is an image processing apparatus comprising: at least one controller, having at least one processor which executes instructions stored in at least one memory and/or at least one circuitry, being configured to: generate intermediate data by analyzing PDL data; generate a color conversion table based on a predetermined color conversion method; rewrite color information contained in the intermediate data by using the color conversion table; and perform rendering based on the intermediate data after the rewrite of the color information.

A method and a system for digital direct imaging, an image generating method and an electronic device are provided. The method for digital direct imaging includes: obtaining a first image of a first format; converting the first image into a second image of a second format, wherein the second image includes a contour description; generating a correction parameter according to at least one mark on a substrate; correcting the second image according to the contour description and the correction parameter; and performing a rasterization operation on the corrected second image and imaging the second image processed by the rasterization operation on the substrate by an exposure device.

A method of rendering a document described in a page description language, is disclosed. The document comprising a plurality of images is received. An intermediate graphical representation of the document is formed based on image metadata for the images, the intermediate graphical representation being subdivided into a plurality of tiles. Image data of one of the images is received to render the intermediate graphical representation. A tile of the intermediate graphical representation touched by the received image is identified, in response to receiving the image data. The identified tile is marked for rendering based on a number of the received images for the identified tile compared to a determined number of images contributing to the identified tile, the number of images contributing to the tile being determined using image metadata of the images. The document is rendered using the marked tile.