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Setting which colors become black or white in black & white bitmaps

This procedure only applies to color images that will be using the Black

&White Bitmap output type. It allows you to create special effects, or to correct for originals on colored paper.

Images consist of pixels. In color images, each pixel has a varying amount of Red, Green, or Blue to create its specific color. You can determine whether the Red, Green, or Blue in each pixel turns to black or white in the final scanned image.

Scanning from HP Precisionscan Pro

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To set which colors become black or white in black & white bitmaps

1Make sure that Black & White Bitmap is selected on the Output Type menu. The selection should have a dot beside it.

2On the Advanced menu, click Adjust Black & White.

3Select a color channel from the Scan using channel list.

 

Choose Red to change the red in the image to white. Green and

 

blue become black. Useful for originals printed on pink or red

 

paper.

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Choose Green to change the green in the image to white. Red

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and blue become black. Useful for originals printed on green

paper.

 

Choose Blue to change the blue in the image to white. Red and

 

green become black. Useful for originals printed on blue paper.

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Choose NTSC Gray to convert light shades of all colors to white

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and dark shades of all colors to black. (No one color becomes all

white or all black.) Colors are converted to gray at a ratio of 30%

red, 59% green, and 11% blue.

To reset to the default colors

1Make sure that Black & White Bitmap is selected on the Output Type menu. The selection should have a checkmark beside it.

2On the Advanced menu, click Adjust Black & White.

3Choose NTSC Gray from the Scan using channel list.

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Image 59
HP 4400C manual To reset to the default colors

4400C specifications

The HP 4400C and HP 5400C are well-regarded models in the realm of HP’s multifunctional printer offerings, establishing themselves as reliable devices for both personal and small office use. These printers blend advanced technology with user-friendly features, setting high standards in the printing industry.

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