Images without colour information, displayed only in black, white and varying shades of gray.

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-4
votes
2answers
88 views

Using gray font, is it OK? [on hold]

I am writing a math draft in PDF format. Is it OK to use gray font for the parts of math proofs I remove but retain? If somebody print my PDF, will gray fonts work well with all modern printers? ...
3
votes
1answer
224 views

Make the same grayscale image appear in different colours in InDesign

I have seen an old InDesign file link to the same tiff image but have it in different colours just by applying those colours on the object's frame within InDesign. The tiff file itself was a 8-bit ...
1
vote
2answers
102 views

Difference between “Black & White” and “Grayscale”

From my previous question I found that Grayscale ≠ Black & White. So, I want to know the differences between "Grayscale" and "Black & White" clearly/completely.
4
votes
2answers
53 views

Can I store separate grayscale versions of images in a colored pdf?

While one should ideally make sure a color image is also suitable for greyscale printing via a printer's automatic conversion, sometimes it would make sense to simply provide an alternate version (...
0
votes
0answers
39 views

Which Photoshop commands are affected by the gray color profile?

In Adobe Photoshop’s Color Settings, you can choose different working spaces for gray: Dot Gain 15% (the default for Europe) Dot Gain 20% (the default for North America) Gray Gamma 2.2 (the default ...
-1
votes
4answers
215 views

Turn Grayscale image into black image with transparency

What I want is for the image to turn all grays into transparencies of black, which doesn't seem to work when I simply use "Colour Range" to remove white from image. -Using Adobe Photoshop.
0
votes
0answers
50 views

Problems with colors in inkscape

I can't make the right colors in ikscape. On the fisrt picture I turned off the black color but it hasn't disappeared. The second image is the original version. It's like colored picture. How do I ...
0
votes
1answer
80 views

Show color by dot density

Suppose I have a grayscale image and I want to translate the image into a black and white image (bw-image) in the following way: white color = no black dots in the bw-image ...in between.... black ...
1
vote
2answers
57 views

Grayscale, washed out effect for web page footer

I am trying to duplicate this portrait mosaic -- inspiration courtesy of Mozilla's homepage -- for a company intranet footer. I'm a Photoshop neophyte (more adept with Illustrator) and don't know how ...
0
votes
3answers
1k views

How can I save an image as a 2-bit PNG. any ideas?

Im looking to save an icon as a 2-bit PNG or BMP, any ideas? The lowest option in photoshop is 4-bit. My icons are 4-levels grayscale and must be saved as a 2-bit image. Is there a trick or a ...
1
vote
1answer
369 views

How to get 16-bit grayscale color picker in Photoshop

I am creating a 16-bit grayscale drawing in Photoshop. Unfortunately, the color picker doesn't show 16-bit grayscale numbers (0-32768). Without being able to input exact values, it's very difficult to ...
3
votes
4answers
18k views

How do I set a Photoshop image to just pure black and white, no grayscale?

i'd been googling for answers for this, all guides point me to make it grayscale, but actually it is still not enough, it still allows non-black(gray gradient). What I want is Suppose I ended up ...
2
votes
2answers
3k views

Saving an 8-bit grayscale image as a 2-bit image

Assuming there's an 8-bit grayscale image; what's the simplest method to save it as a "2-bit per pixel" image? Is it a binary image or something else (like a colormap image)? In the case of binary, ...
1
vote
1answer
553 views

8-bit gray image in gimp

I change the mode of my figure to Grayscale in the gimp and export it in the .eps format. But my output .eps figure still has CMYK mode. Is any other action that I most do to have a 8-bit gray image?
0
votes
0answers
398 views

scan/fax with text & numbers in black & white - how to improve/cleanup/enhance using Photoshop/GIMP?

I do not have a lot of experience with Photoshop or GIMP. I have a scanned or faxed document of an invoice/receipt that I am trying to submit to get reimbursed. I was mailed a copy with text that is ...
4
votes
2answers
580 views

Best Grayscale method for checking contrast?

While designing art assets in Photoshop, I've always tried to use the Grayscale method for checking the contrast levels. Unfortunately, different articles/sources recommend different methods of ...
3
votes
1answer
849 views

Retain original colour in a defined brush preset (alternatively, add colour to a grayscale image based on tone)

In Photoshop (or any other program), is there a way to define a brush from an image and retain the colour of the image in the brush, without it being converted to grayscale (and then becoming monotone ...
0
votes
2answers
140 views

gray photos differ between pc and offset printing

i wanted to ask why gray photos differ between pc and offset printing. 86% gray seem whitish gray on pc but became black on offset printing , is there any solution to see how appear grayscale images ...
0
votes
1answer
416 views

How to ensure exclusive grayscale colors in Illustrator document?

I'm using Illustrator CS6 to create several black/white figures. Since the printing agency requires "well" prepared figures, I want to ensure that all figures are in grayscale, or in other words, that ...
7
votes
4answers
885 views

Is there a 'correct' way to convert an image to grayscale in Photoshop?

In Photoshop, there are several ways to convert an image into black & white. For example: Image > Adjustments > Desaturate; Image > Adjustments > Hue/Saturation and set the ...