Image processing device, image output device, terminal device, and image forming system and computer readable medium storing program thereof

An image output device that outputs an image based on image information in which color data has been converted by an image processing device which comprises:

• a separation unit that separates image information including a first image having a plurality of color components and a second image having a specific color component and to be overlaid at least in part on the first image into a specific color component image of the same color component as the specific color component and an image with color components other than the specific color component among the plurality of color components;
• a color conversion unit that performs color conversion of the image with color components other than the specific color component, separated by the separation unit;
• and
• a combination unit that combines the color-converted image with color components other than the specific color component, converted by the color conversion unit, and the specific color component image separated by the separation unit,
• wherein the combination unit includes a binary image transformation unit that transforms the image combined by the combination unit into a binary image.

An image forming system, comprising:

• an image processing device which includes:
• a separation unit that separates image information including a first image having a plurality of color components and a second image having a specific color component and to be overlaid at least in part on the first image into a specific color component image of the same color component as the specific color component and an image with color components other than the specific color component among the plurality of color components;
• a color conversion unit that performs color conversion of the image with color components other than the specific color component, separated by the separation unit;
• and
• a combination unit that combines the color-converted image with color components other than the specific color component, converted by the color conversion unit, and the specific color component image separated by the separation unit,
• an image output device that outputs an image based on image information in which color data has been converted by the image processing device;
• and
• a terminal device that transmits image information in which color data is not yet converted by the image processing device to the image processing device.

A terminal device that transmits image information in which color conversion is not yet performed by an image processing device to the image processing device which comprises:

• a separation unit that separates image information including a first image having a plurality of color components and a second image having a specific color component and to be overlaid at least in part on the first image into a specific color component image of the same color component as the specific color component and an image with color components other than the specific color component among the plurality of color components;
• a color conversion unit that performs color conversion of the image with color components other than the specific color component, separated by the separation unit;
• and
• a combination unit that combines the color-converted image with color components other than the specific color component, converted by the color conversion unit, and the specific color component image separated by the separation unit,
• wherein the combination unit includes a binary image transformation unit that transforms the image combined by the combination unit into a binary image.

A computer readable medium storing a program causing a computer to perform a process comprising:

• separating image information including a first image having a plurality of color components and a second image having a specific color component and to be overlaid at least in part on the first image into a specific color component image of the same color component as the specific color component and an image with color components other than the specific color component among the plurality of color components;
• performing color conversion of the separated image with color components other than the specific color component;
• combining the color-converted image with color components other than the specific color component, converted by the color conversion, and the separated specific color component image;
• and
• transforming the combined image into a binary image.