Image processing apparatus, computer readable medium, and printing apparatus

An image processing apparatus comprising:

• a registering section that interprets a drawing instruction so as to register binary-processing threshold matrices in response to a subject to be drawn;
• a print control instruction producing section that produces print control instructions, the print control instructions including a resolution instruction, a monochrome designation instruction indicating whether a monochrome designation is applied, and a page description language designation instruction, and that produces binary-processing threshold matrices in response to the registered binary-processing threshold matrices, the binary-processing threshold matrices produced by the print control instruction producing section including any of a binary-processing threshold matrices required and a binary-processing threshold matrices not required in a drawing operation by the drawing instruction;
• a language producing section that produces instructions of a page description language based on the drawing instruction;
• and
• a print information producing section that adds the print control instructions to the instructions of the page description language so as to produce print information.

A computer readable medium storing a program causing a computer to execute a process for processing an image, the process comprising:

• interpreting instructions of a print control contained in print information, the instructions including a resolution instruction, a monochrome designation instruction indicating whether a monochrome designation is applied, and a page description language designation instruction;
• selecting a binary-processing threshold matrix in response to at least the resolution instruction, the monochrome designation instruction, and the page description language designation instruction by any of ways including selecting and eliminating;
• and
• binary-processing a page description language contained in the print information by employing the selected binary-processing threshold matrix.

A computer readable medium storing a program causing a computer to execute a process for processing an image, the process comprising:

• interpreting a drawing instruction;
• registering binary-processing threshold matrices in response to a subject to be drawn;
• producing print control instructions, the print control instructions including a resolution instruction, a monochrome designation instruction indicating whether a monochrome designation is applied, and a page description language designation instruction;
• producing binary-processing threshold matrices in response to the binary-processing threshold matrices registered, the produced binary-processing threshold matrices including any of binary-processing threshold matrices required and binary-processing threshold matrices not required in a drawing operation by the drawing instruction;
• producing instructions of a page description language based on the drawing instruction;
• and
• adding the print control instructions to the instructions of the page description language so as to produce print information.

A printing apparatus comprising:

• an interpreting section that interprets instructions of a print control contained in print information, the instructions including a resolution instruction, a monochrome designation instruction indicating whether a monochrome designation is applied, and a page description language designation instruction;
• a selecting section that selects a binary-processing threshold matrix in response to at least the resolution instruction, the monochrome designation instruction, and the page description language designation instruction by any of ways including selecting and eliminating;
• a binary-processing section that binary-processes a page description language contained in the print information by employing the binary-processing threshold matrix selected by the selecting section;
• and
• a printing section that prints information binary-processed by the binary-processing section on a medium.