A plate-making method for manufacturing a printing plate includes: manufacturing the printing plate based on a knockout method in which knockouts of halftone dots in one color are formed, and halftone dots in the other color are overprinted onto positions of the knockouts; for each of pixels, when a sum of a halftone dot area ratio of the one color and a halftone dot area ratio of the other color is smaller than 100%, forming a gap from a knockout in the one color around a halftone dot in the other color; and for each of pixels, when the sum of the halftone dot area ratio of the one color and the halftone dot area ratio of the other color is greater than 100%, forming an overmask such that the halftone dot in the other color penetrates a periphery of the halftone dot in the one color.

A plate-making method for manufacturing a printing plate includes: manufacturing the printing plate based on a knockout method in which knockouts of halftone dots in one color are formed, and halftone dots in the other color are overprinted onto positions of the knockouts; for each of pixels, when a sum of a halftone dot area ratio of the one color and a halftone dot area ratio of the other color is smaller than 100%, forming a gap from a knockout in the one color around a halftone dot in the other color; and for each of pixels, when the sum of the halftone dot area ratio of the one color and the halftone dot area ratio of the other color is greater than 100%, forming an overmask such that the halftone dot in the other color penetrates a periphery of the halftone dot in the one color.

There is provided a plate-making method for manufacturing printing plates capable of representing colors by overprinting halftone dots in at least three colors of a plurality of process colors. The plate-making method includes: overprinting two colors of the at least three colors by a knockout method in which knockouts of halftone dots in one color of the two colors are formed, and halftone dots in the other color are overprinted onto positions of the knockouts; and overprinting a remaining color of the at least three colors onto the two colors by an overprint method in which at least part of halftone dots in the remaining color is put on the halftone dots in the one color and/or the halftone dots in the other color. The remaining color includes at least white.

There is provided a plate-making method for manufacturing printing plates capable of representing colors by overprinting halftone dots in at least three colors of a plurality of process colors. The plate-making method includes: overprinting two colors of the at least three colors by a knockout method in which knockouts of halftone dots in one color of the two colors are formed, and halftone dots in the other color are overprinted onto positions of the knockouts; and overprinting a remaining color of the at least three colors onto the two colors by an overprint method in which at least part of halftone dots in the remaining color is put on the halftone dots in the one color and/or the halftone dots in the other color. The remaining color includes at least white.

Examples associated with template generation are disclosed. One example includes identifying a set of edges of a set of labels from an image of a sheet of labels. Members of the set of labels in an unused state are also identified. A printing template is generated for the sheet of labels based on the edges of the set of labels and based on which members of the set of labels are in an in-used state.

Examples associated with template generation are disclosed. One example includes identifying a set of edges of a set of labels from an image of a sheet of labels. Members of the set of labels in an unused state are also identified. A printing template is generated for the sheet of labels based on the edges of the set of labels and based on which members of the set of labels are in an in-used state.

Disclosed embodiments relate to methods for automatically generating cutting instructions to translate a color image into a field stencil having a plurality of guideline apertures. The plurality of guideline apertures may denote the color zone boundaries in the color image, for example by being placed along the line drawing representing the color zone boundaries. Such field stencils may then allow for the reproduction of multi-color logos using a single stencil.

Disclosed embodiments relate to methods for automatically generating cutting instructions to translate a color image into a field stencil having a plurality of guideline apertures. The plurality of guideline apertures may denote the color zone boundaries in the color image, for example by being placed along the line drawing representing the color zone boundaries. Such field stencils may then allow for the reproduction of multi-color logos using a single stencil.

A method of preparing a first and second lithographic printing plate for lithographic printing of a color digital image on a receiver wherein the color digital image includes a plurality of colorant separations; the method including the steps of jetting droplets by an inkjet CTP system on a first lithographic support for the first lithographic printing plate thereby forming a printing area of a first lithographic image which represents a first colorant separation of the plurality of colorant separations; and jetting droplets by the inkjet CTP system on a second lithographic support for the second lithographic printing plate thereby forming a printing area of a second lithographic image which represents a second colorant separation of the plurality of colorant separations; and wherein the method of preparing a first and second lithographic printing plates is characterized by forming a part of or whole the first and second lithographic image in a print pass by the inkjet CTP system.

A method of preparing a first and second lithographic printing plate for lithographic printing of a color digital image on a receiver wherein the color digital image includes a plurality of colorant separations; the method including the steps of jetting droplets by an inkjet CTP system on a first lithographic support for the first lithographic printing plate thereby forming a printing area of a first lithographic image which represents a first colorant separation of the plurality of colorant separations; and jetting droplets by the inkjet CTP system on a second lithographic support for the second lithographic printing plate thereby forming a printing area of a second lithographic image which represents a second colorant separation of the plurality of colorant separations; and wherein the method of preparing a first and second lithographic printing plates is characterized by forming a part of or whole the first and second lithographic image in a print pass by the inkjet CTP system.