Method, device and computer readable medium for reducing consumable ink in response to image quality degradation such smear
AssigneePretone Ltd.
InventorsOri Eizenberg, Yishai Brafman, Boaz Katz, Raphael Salamon
Life of this patent
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Abstract
Consumable reduction is achieved for a printing device by utilizing a processor (32), memory (34) and software for receiving input information representative of an image to be printed and generating output information representative of a reduced consumable image in response to consumable smear, spatial relationship between adjacent dots and an image quality degradation. Factors such as print medium characteristics, heat or humidity and composure of the consumable are considered in performing the consumable reduction.
Claims27
A method for reducing a consumable by a printer driver on a computer, the method comprising:
- receiving input information representative of an image to be printed;
- and generating output information representative of a reduced consumable image in response to consumable smear, spatial relationship between adjacent dots and an image quality degradation;
- wherein the reduced consumable image has fewer pixels than the image to be printed;
- and removing a certain dot from an image to be printed if:
- (i) a luminance value of the certain dot exceeds a predefined threshold;
- and (ii) a smear factor does not exceed a quality degradation value multiplied by a difference between a color vector of the certain dot and an average of color vectors of adjacent dots of the certain dot.
A non-transitory computer readable medium having stored thereon a set of instructions, the set of instructions, when executed by a processor, cause the processor the perform a method of:
- receiving input information representative of an image to be printed;
- and generating output information representative of a reduced consumable image in response to consumable smear, spatial relationship between adjacent dots and an image quality degradation;
- wherein the reduced consumable image has fewer pixels than the image to be printed;
- further storing instructions for removing a certain dot from the image to be printed if:
- (i) a luminance of the certain dot exceeds a predefined threshold;
- and (ii) a smear factor does not exceed a quality degradation value multiplied by a difference between the color vector of the certain dot and an average color vector of adjacent dots of the certain dot.
A device comprising:
- a computer further comprising a memory unit, for storing an consumable reduction software;
- and a processor, coupled to the memory;
- a printer driver software;
- wherein the printer driver on the computer is adapted to receive input information representative of an image to be printed;
- and to execute the consumable reduction software such as to generate output information representative of a reduced consumable image in response to consumable smear, spatial relationship between adjacent dots and an image quality degradation;
- wherein the reduced consumable image has fewer pixels than the image to be printed;
- wherein the printer driver software is further adapted to remove a certain dot from the image to be printed if:
- (i) a luminance of the certain dot exceeds a predefined threshold;
- and (ii) a smear factor does not exceed a quality degradation value multiplied by a difference between the color vector of the certain dot and an average color vector of adjacent dots of the certain dot.
Dependencies are inferred from the claim text.