In an example method, a dot pattern of pixels including information to be encoded across an image is mapped to a corresponding subset of the grayscale source pixels corresponding to the image to be printed. A value of a grayscale pixel in the subset of the grayscale source pixels is modified based on based on a predetermined threshold pixel value. The value of the grayscale pixel is decreased in response to detecting that the predetermined threshold pixel value is exceeded. The clipping channel color is used to detect the dot pattern of pixels. The image including the subset of pixels with modified values is printed.

A method for compensating for printing substrate deformation in a multicolor duplex printing operation by way of a computer. The substrate deformation that arises when individual color separations are printed onto the first and second sides of the printing substrate in the printing units is established and compensated for in the course of an automated register correction process. The computer calculates a forecast of the substrate deformation on a basis of the established first side deformation parameters of the printing substrate. When further color separations are printed onto the second side the forecast is used as an input parameter for a compensation of the substrate deformation of the second side.

A portable device uses a microphone to listen to ambient audio, ascertains a corresponding identifier, and uses the identifier to enable one or more further functions. One of these can be internet search. Such functionality can also be based on digital datawithout requiring a microphone-equipped device.

A method for compensating for printing substrate deformation in a multicolor duplex printing operation by way of a computer. The substrate deformation that arises when individual color separations are printed onto the first and second sides of the printing substrate in the printing units is established and compensated for in the course of an automated register correction process. The computer calculates a forecast of the substrate deformation on a basis of the established first side deformation parameters of the printing substrate. When further color separations are printed onto the second side the forecast is used as an input parameter for a compensation of the substrate deformation of the second side.

An image processing apparatus which is capable of preventing decrease in user convenience with respect to enlarged display of a previewed image. The image processing apparatus generates preview images based on document data. Based on completion of generation of a first preview image based on the document data, a display device is caused to display a screen through which an instruction to start generation of a second preview image based on the document data can be issued.

In S210, a character size and an inter-column size are calculated using a virtual body size in S206, and the character size and an inter-character size (inter-column size) are reflected in properties of each text box. In step S301, a position and a size of each text box are set, in step S302, the character size is set in the property of each text box, and in the following step S304, the inter-character size is set in the property so that characters do not overlap in each text box. Thereafter, in S306, the text boxes are superimposed so that reference frames of adjacent characters are in contact with each other.

Method of generating a copy detection pattern (CDP), or a portion of a CDP, for printing on a substrate, comprising: generating a plurality of digital files, each of an image comprising an at least partially random two dimensional (2D) distribution of dark and light pixels, and applying an optimization process configured to increase a copy detection performance of a resultant digital file output by the method, said optimization process comprising a) comparing a copy detection performance of a first of said plurality of digital files, which constitutes a test digital file, with a copy detection performance of another of said plurality of digital files modified with respect to said test digital file, which constitutes a modified digital file, b) replacing the test digital file with said modified digital file, if the copy detection performance of said modified digital file is greater than the copy detection performance of the test digital file, in which case the modified digital file becomes the test digital file, and c) repeating steps a) and b) until a termination condition is met.

Example implementations relate to multiple payload pantograph. Some examples may include a first pattern generation engine to generate a first pattern. The first pattern may be a data-bearing pattern encoding a first payload. Additionally, some examples may include a second pattern generation engine to generate a second pattern, the second pattern (by itself or in combination with the first pattern) may represent a second payload. The second payload may be camouflaged by a combination of the first pattern and the second pattern. Some examples may also include a pantograph generation engine to generate a multiple payload pantograph including the first pattern and the second pattern. The multiple payload pantograph may include the first pattern in one of the pantograph background or the pantograph foreground.

A system prints a document using a device-independent pattern ink cell that is appropriate for the print device. The system does this by identifying an object in a print job corresponding to a security element that identifies a pattern ink cell for a color parameter. The system then defines a device-independent pattern ink cell for rendering the identified object. The definition of the device-independent pattern ink cell includes at least one scaling routine for adjusting a parameter of the device-independent pattern ink cell based on a resolution of a print device that will be used for printing the document. The system then queries and receives from a print system a device resolution of the print device, executes the at least one scaling routine to transform the device-independent pattern ink cell to yield a device-dependent pattern ink cell, and generates a print using the device-dependent pattern ink cell.

A system prints a document using a device-independent pattern ink cell that is appropriate for the print device. The system does this by identifying an object in a print job corresponding to a security element that identifies a pattern ink cell for a color parameter. The system then defines a device-independent pattern ink cell for rendering the identified object. The definition of the device-independent pattern ink cell includes at least one scaling routine for adjusting a parameter of the device-independent pattern ink cell based on a resolution of a print device that will be used for printing the document. The system then queries and receives from a print system a device resolution of the print device, executes the at least one scaling routine to transform the device-independent pattern ink cell to yield a device-dependent pattern ink cell, and generates a print using the device-dependent pattern ink cell.