Questions tagged [grayscale]

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

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1answer
56 views

Paper background with flecked or fibrous pattern

How do you achieve the background paper effect in Marissa Mayers CV? It looks like there are a bunch of soft sketched lines and squiggles, or it was printed on that creme contour expensive paper and ...
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0answers
33 views

The levels adjustment is not applied after hitting OK

I have a gray-mode design with one layer, when I change the levels of it, it shows changes while in preview, but once I hit OK everything goes back like nothing was happened - I've tried to convert ...
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1answer
274 views

Is there automatical way to fill white pixels to black if it's surrounded by black pixel? See my image for more details

Basically, if you look at the image I want to fill the white noise if it's surrounded by black pixels. Maybe not a single white pixel but I definitely would like to fill the bigger patches. I was ...
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1answer
210 views

Why does Photoshop CS6 open new documents in grayscale mode?

When I open a new document in Photoshop CS6, it opens in grayscale mode. How can I change this?
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1answer
428 views

Any command line tool to convert “black-and-white” images to “bit mapped”(“two-tone”) images

On Windows, IrfanView can create a bi-level version of Gray Level Images conveniently. Is there any command line tool available on Linux?
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1answer
96 views

Adobe Acrobat Saving Grayscale not CMYK or RBG [closed]

This is a new problem for me. Acrobat is saving grayscale removing all color info. It appears color in Acrobat but will go gray in Photoshop. Checked settings to make sure not grayscale. Ideas please?...
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1answer
815 views

Erode-like filter from Gimp in Photoshop

I'm seeing a guy on YouTube making a heightmap for sand dunes, using Gimp and Photoshop. In Gimp > Filter > Generic he has this tool called "Erode" Which accomplishes the following I played around ...
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1answer
439 views

How to create a simple grayscale image with conical gradient?

I need to create an image in illustrator with the following specific requirements. Is this possible? If so, how? Requirements: 1) The image needs to be in grayscale with a conical gradient such that ...
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1answer
1k views

CMYK profiles issue

When I’m working on a CMYK file with a SWOP Coated profile in Photoshop, I can convert my QR code color to true black (K=100%) by opening a new work space with the same dimensions but changing the ...
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1answer
2k views

How do I set the image mode to 4-bit grayscale (16-color)? Photoshop CS6

I see I can adjust my image between 8, 16, and 32 bits per channel, and when I create a new image I can choose between bitmap (1-bit) or 16-bit+ in all the other modes. Is there a way to do a 4-bit ...
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1answer
484 views

How to obtain this effect using Photoshop CS6?

I need a really simple, fool-proof method to obtain this effect: I want to leave the letterbox colored while make all the surrounding area in a deep dim gray shade, the grade of gray that I see is ...
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2answers
5k views

Printing a grayscale image with a CMYK printer

I'm new to the forum and I would like to ask a question. To print a postcard I have to submit my design using a CMYK template provided by the printer (Moo printing). The design is a grayscale image ...
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1answer
887 views

Creating a line of dots that goes gradually from 1PPI to 1000PPI (DPI) in Illustrator

I'm testing a laser cutter and need to make a "graduated" line consisting of tiny dots that goes from 0 or 1 PPI(DPI) to 1000 PPI(DPI) - breaking a line into gradually smaller pieces with same-size ...
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3answers
571 views

Photoshop: Converting to Grayscale and then setting darkest value to 60% black

Once you have a color picture converted to grayscale, how could you tell photoshop to set the darkest color to 60% black and then shift the rest of the tones accordingly? EDIT: To give some context, ...
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1answer
409 views

Illustrator/InDD - Grayscale layers combine to CMYK

Problem I have a grayscale eps image that is throwing CMYK errors with Acrobat preflight. Output Preview show no CMY values - only K, but the preflight errors will cause problems when we send it to ...
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2answers
2k views

Photoshop: how to move image to mask

How can I move a black & white image to a layer mask in Photoshop? My image includes shadows, lights, etc and I can't just select area and paste to mask. I need this saved in grayscale.
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1answer
266 views

Converting a gray gradient to grayscale in InDesign

I have a InDesign document and my printer needs my "grays" in grayscales. My document has some reds and also some CYMK grays. Is there a easy way to convert the grays to grayscales but keep the other ...
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3answers
226 views

How can I print true b&w with Epson Discproducer PP-100? (no CYM color ink used)

I would like to print a true b&w image on discs using the Epson Discproducer PP-100 but when I select Black in the Discproducer print settings it still uses a bit of color ink (CYM). I was told by ...
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0answers
76 views

Are there any noticeable differences if a grey scale image is converted to RGB?

Browsing through the archives I didn't see this question asked before after reviewing the tags color-profile, rgb, grayscale but I am wondering if there are any visual differences if an image that was ...
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1answer
503 views

Converting a logo to monotone in GIMP [duplicate]

I usually convert my logos to a particular colour (not just greyscale) in photoshop by using the following process: Convert to Greyscale/Choose Duotone/Select colour and click okay. I need to do the ...
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2answers
391 views

Convert to BW by replacing colors with “shapes” (for printing)

I know nothing about image editing & conversion so please don't come down too hard on me. What I'd like to do is, to convert some color pictures (these ones here) into black & white so I can ...
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1answer
411 views

Saving a greyscale image as a bitmap file converts to indexed colours

I'm trying to save an image as a Greyscale bitmap file in Photoshop but it keeps changing to Indexed colours. This also causes the image to become really dark. I am trying to change the files of a ...
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1answer
83 views

How to draw high-resolution images on client-side?

Any libraries, API, or tips are welcome. I am trying to draw Landsat 8 images using Canvas utility of Javascript on my browser. The grayscale reflectance values for Landsat 8 bands are from minimum -...
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3answers
364 views

Why do I see 3 different values for 75% white?

Why do I see 3 values for 75% of white? Same for 50% and many other values. Yes there is a difference between each other, #C0C0C0 is (192, 192, 192), #BEBEBE is (190, 190, 190), #BFBFBF is (191, 191, ...
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2answers
539 views

Using gray font, is it OK? [closed]

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? ...
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1answer
1k 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 ...
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2answers
3k 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.
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2answers
135 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 (...
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4answers
1k 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.
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1answer
338 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 ...
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2answers
103 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 ...
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3answers
6k 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 ...
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1answer
2k 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 ...
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6answers
112k 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 ...
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2answers
12k 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, ...
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1answer
2k 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?
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0answers
1k 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 ...
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2answers
2k 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 ...
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1answer
2k 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 ...
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2answers
278 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 ...
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1answer
1k 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 ...
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4answers
4k 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 Saturation ...
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8answers
245k views

How do I change a single layer to grayscale in Photoshop CS4?

I know you can have the whole image turn grayscale: Image → Mode → Grayscale What if I only want to make specific layers grayscale? There's gotta be an easier way than pulling out the layers you want ...