Unique spot color grayscale image conversion
I'm trying to convert a grayscale image in a single spot color image. The spot color is PMS425C, color gray, but as I'm only printing 2 colours I need to convert these images in one spot color.
Can someone please help?
Have you seen the monotonous separated to CMYK? If so, you can not make the PDF correctly and the place is being converted. It can still have CMYK channels, but they are empty and will not end plates. Check your output to PDF settings and check the ink Manager that the tasks are retained. In addition, there are more than one way to display preview of the output that can be confusing at first.
You export as PDF X / 1a and if your settings are correct, when you view in output preview (separations) in Acrobat, you should see the spot as a task.
Try to save your monotonous as .psd too many other formats will support the monotonous. If you view separations in ID, you will be able to see if your file supported by spot color.
Have an announcement sent to publish, PNG, gray eyes image w/spot color, place in ID CS3 and it shows CMYK. I can change using PS CS2 or ID so it prints grey w/spot?
The ad was created by (ugh) editor...
?? am I missing something?
Yes, save the selection as an alpha channel, which can then be loaded at any time! Since the Panel layers, click Save icon channel:
Registered channels can be loaded as order parts by clicking on the channel or by selection of the load:
How can I take a spot color in the Pantone swatch library and convert it for use in an RGB document? Thank you.
1) click on the swatches Pantone or a path to which it is applied;
(2) switch to RGB (for RGB, CMYK to CMYK) in the palette color/Panel, and;
(3) click on new swatch in the Swatches palette/Panel dialog box, see the Type of color says color, give it its name (and make Global, as appropriate), and then press OK.
With it, you will have the corresponding RGB (closest match) color as a sample.
So, here's the thing. I have to be able to assign precise shades of gray in an alpha channel, that our code takes the value (between 0-244) and uses it to do its thing. I assumed it would be easy... Simply choose your color and paint... but not so much.
In an alpha channel, or even in a grayscale image, make a selection and fill it with RGB 6,6,6. Since it does not seem to be a way to get a range of gray tones or the entry for Alpha value is th eonly way I can see of the to do.
Now, use the Info Panel, check that it is indeed RGB 6,6,6. This is the case.
Now make another choice and fill it with RGB 7,7,7. Check this box with the info panel and... its 6,6,6.
OK so now use or brightness levels to try to change this until 7,7,7 6,6,6... check with the eyedropper color sampling tool.
What awaits you is what the RGB value of 6,6,6... 8,8,8 at the 10.10.10, it is impossible to make 7,7,7 or 9,9,9. Theres a bunch of other values that are also impossible.
If you do the above in one of the RGB channels if it will work fine... It's just the Alpha and a grayscale image.
On the same vein, on a normal layer, fill an area with you RGB 7,7,7, copy it and paste it into your alpha. Sounds great... until you use levels to increase the contrast and you find that what has been 7,7,7 is now a mixture of noise filled, I suppose, 6,6,6 and 8,8,8.
(NB. as a note that the foregoing also happened in CS5 but in an old version of Photoshop 5.5, it works perfectly...) I can give the 7,7,7 RGB and the value that is painted is 7,7,7. Put in CC and its fine. If it's just the creation of tones in DC that does not.
In addition, it works fine if you change the individual RGB layers... you can get 6,6,6 AND 7,7,7... but as soon as you copy and paste it into the alpha. .the 7,7,7 found 6,6,6)
1st QUARTER... What am I doing wrong?
Q2... If alpha 8-bit and grayscale images can take on values ranging from 0-254... So how to set the value I want actually? I can't use the value of K, because it's only a percentage is less than levels and is not a separate entry for the alpha value.
Q3... or more simply... How to set the value of gray for a number in particular, for example. 7
Post edited by: Patrick Ward
Ok. so with the very patient help of Chris Cox, I understand vaguly what is happening and why.
I presume its because PS is set up for printing, but the problem is caused by the inadequacy of the RGB and gray profiles workspace in the color settings.
The default value is
RGB: sRGB IEC61966 - 2.1
CMYK: U.S. Web Coated (SWOP) V2
Gray: Dot Gain 20%
Spot: Dot Gain 20%
This gray value is not the same gamma as sRGB IEC61966 - 2.1 which is put in place only 2.20. Because conversion occurs when EACH color space conversion, painting in greyscale alpha channel with and the brush color RGB is forced to change the RGB 7,7,7 to a gamma of 2.2 to grayscale to... is worth what ever gamma dot gain20%. What result sin two different values.
SO the solution is to change the gray value to the same as the value of gamma RGB...
Gray: Gray Gamma 2.2
So, it works!
Good day to all,
I got a U32 512 * 512 data table of photomultiplier using the analog inputs of the DAQ card. My question is how to convert this matrix 32-bit to 8-bit monochrome image for display.
I tried the method in this post to convert grayscale image https://decibel.ni.com/content/docs/DOC-4155 table but the result resembles an outline rather than the actual image. I guess that's because their contribution to flatten Pixmap is 8 bits, but mine is 32-bit. I have a gamma correction to the scale of my data? But how?
I have attached the original image, which is a particle. I have also attached my labview code and the processed image. Thank you!
Then, you will likely make you own custom conversion then increasing the difference between the brightest and darkest. You could just do 4294963840 the zero and 4293967276 the max and scale up to 0-255
PS version CC2015.5 / Windows 7
When loading an image directly from my hard disk, it loads a grayscale image. When Adobe Bridge opens first thumbnail images are displayed in a RGB color but sequentially begin displaying in grayscale. However, when the power of images in PS to help change in the images open as RGB color. Anyone know why this is happening and how to fix it. I must be the only one to go through this because I found nothing in any forum. Thank you... Peter
The tab of HSL/levels of gray in Camera Raw, "Convert to grayscale" is checked on?
Whenever I have display an image to grayscale in Photoshop CC, it has a yellowish tint to it.
I can't just get rid of this annoying yellowish tint!
Opening of the same image in a web browser, it seems OK. No yellow tint at all.
Does anyone have a solution to this?
If I click on the colors of View\Proof, the yellow tint disappears in the grayscale image.
As I said in my previous post, color proof is not a solution to the problem.
I find it curious that the RGB image is neutral, but I would have thought that the monitor profile is the problem, a grayscale image must be gray neutral.
It is not clear if you attempted to set the monitor to sRGB profile. Here is a more detailed explanation.
If this solves the problem, it confirms that the monitor profile is faulty and you will need to calibrate ideally with a material standard.
If it does not solve the problem, please post a screenshot of the color settings dialog box in Photoshop. (Edition > color settings)
Press the Windows key + R to open the Run dialog box, enter colorcpl in the text field and press ENTER.
In the color management dialog box, click Add, and then choose sRGB IEC61966 - 2.1 and click OK.
Now select the sRGB profile and click on set as default profile.
Is it possible that I can select an object or objects that have a value of mixed CMYK or Grayscale, and then select a Spot color and it will keep the same value of midtones as before?
For example, I have an object that is C: 0 M: 0 Y: 0 k: 20 and I select Reflex Blue. What is happening is it change my object to 100% Reflex Blue. Is there a way to change to automaitically Reflex Blue 20%?
Another example, I have 3 objects, one is 20 k: the second is 40 k: and the third is KC: 85. I want to select all the objects in three at the same time, select Yellow PANTONE and get them to change yellow PANTONE 20, 40 yellow PANTONE and PANTONE yellow 85.
Is there a way to do it or I will always have to manually edit each element?
Thanks for the help.
Select the elements to recolor
Edit > edit colors > redefine > follow my screenshots
I love clicking this button under the entitlement, one place for everything that you color reduction settings.
Use tinted scale. Exact will give you 100% of the color. The exact word is confusing here, this means that the color of the destination (100% of everything that the color you choose), not a version tinged scale.
Unfortunately I do not know how to get the exact values of blacks to convert the exact values of spot color. Scale of hues will you get you get you close enough for what you need. In my example that a black 89% converts a 84% of the place, so no exact but alteast I have a range of shades, and sometimes the results are better than accurate, depends on your art.
Here are my before and after.
Illustrator CS6 (other users on 5)
Mac OS 10.6
I need go of tones of K and K to a task of color and tones of a spot color.
I use Recolor work because I can't merge into K. The art comes our customers K so we cannot conceive just differently.
Edit: for clairification. The rectangles on the right are tones of k and k. Rectangles on the left are results after its conversion to a spot color with illustrations to redefine colors. I'm honestly not married to the idea of using Recolor art. I just need a way to move with precision k tones to a place.
Here you go, the script targets only the PathItems with the default black CMYK [0,0,0, value], locked or hidden objects will be ignored, as well as objects in locked or hidden layers.
// script.name = cmykBlackToSpotBlack.jsx; // script.description = changes art color from standard CMYK Black to an EXISTING Spot swatch named "spot black"; // script.requirements = an opened document; // script.parent = CarlosCanto // 08/07/13; // script.elegant = false; // reference http://forums.adobe.com/thread/1267562?tstart=0 // Note: color values get rounded to the nearest integer, to avoid values like black = 99.99999999999999 // Hidden and/or Locked Objects will be ignored, as well as objects in Hidden and/or Locked Layers #target Illustrator var idoc = app.activeDocument; var pi = idoc.pathItems; var sw = idoc.swatches["spot black"]; var fcounter = 0; var scounter = 0; for (j=0; j
I replaced a green in a CMYK with Pantone 354U image, and although the resulting color is correct he always appears as a CMYK color and not the task of color I want. Is this possible?
In order to use spot colors, you need to change or add a channel that would use that color and then fill this information channel to indicate the amount and intensity of the use of this spot color black, white and gray.
When you say replaced you the Green (K) CMYB with a Pantone, looks like you selected green color in your image (that would result from a mix of values on channels, given that no green channel) and then replaced by the selected Pantone, you did not not using channels, which means that you actually replaced it with a color of CMYK equivolent not a spot color.
I prepare a document for printing, and when I go to the package for output I get a message that there are a handful of spot colors in addition to the CMYK. Is it possible I can get InDesign to show me where in my document these tones are? (There are many graphics placed in many pages) I can't seem to find a 'show' or 'page number' for these colors. In addition, if the CMYK symbol appears to the right of the point of color in the Panel swatched, am I good as went to press?
Maybe the satest to see where the spot colors are in use is to open the Activ separations and separations Preview Panel, and then click the eyeball next to CMYK. Everything left on the page is your direct. If you do not see a spot color in the Panel, there are none in use.
You asked if it was safe to go to print with stains, and the answer is that it depends. Are paying you extra for the spot colors? If this isn't the case, Swatches Panel flyout menu choose Manager of inks, then check the box to convert all Spots to process and for the best conversion to any known color space, check the box to use the Lab values as well. Don't know what you mean by seeing the CMYK symbol to the right of the swatch - which means that it is not RGB, but there are two small icons there and the one on the left will tell you if the color is spot on, but neither one will tell you if it is transposed to the process in the ink Manager.
I have little experience in dealing with spot colors. I'm trying to mix two colors of accompaniment for a print job. Unfortunately the spot color gradient (left image) do not mix like the gradient color of the process (right image). On the contrary, they will fade to a lighter color in the Center where they meet. I'm sure that someone out there can help you because I think that is more of a technical problem that I'm just not familiar with. Thanks in advance to all comments!
The difference between two images, is the color range, mode CMYK is larger than the spot colors, this cause an incompatibility of mixture. If you want a better overview of your spot color on preview test print on the view menu, but don't forget that the reference of the right color is Pantone color card.
I came across a rather curious problem. In a Visual inspection machine, we create 8-bit 16MPixel images. These are then calculated in single precision images. After processing the image display us certain types of images of result to the user. Here, the user can use the mouse on the image display and gets a reading of the current image of the sector where the mouse is currently positioned. If the image is RGB or U8, fine.
However, if the display holds one of the 32-bit grayscale images things become quite slow, by a factor of 5 to 10 about. Now I can see that 32-bit is quite a bit more than 8 bits, so I guess an increase in lap by a maximum factor of 4 times.
Since the images are large enough, an update takes about 90-100 ms with the 32-bit image, while the same action requires little more than 10 to 20 ms with U8 and same RGB. Because the movement of the mouse is caught by a structure of the event, all movements are processed and finally the tail to cause a blockage of the software that all these events are processed. This leads to ridiculously long 'freeze' time in the software, sometimes as long as 20 sec, as I saw through a log of the events has been implemented for this purpose.
Attached is an example of code that shows the unusually long processing time for overlays on SGL-images. If there is any suggestion, I would be happy to read them. Thanks in advance.
After in-depth discussions with German support NOR we have understood that it is not primarily the recovery action that consumes time, but rather my screen image update after each action of the event. As my goal was to provide the user with the most recent image information available as close to the position of the mouse as possible there is no another way to do it without compromising the goal that I have explained.
Several alternative ideas, we had (some don't work well) are briefly explained below:
- Use the property of the band of the art instead of creating an overlay
- PRO: ultra fast response because no update of the display image is needed, easy to implement
- Cons: Stationary, takes advanced band rest a while to appear, requires the user to stay in the same place on the screen for a while, the band faded unpredictable (in my test) and reappears only after leaving and returning to the display picture more keep the mouse pointer for a few seconds
- Use an extra (classic style) indicator string to display the desired text in the desired position
- PRO: also very fast
- CON: kind of hassle to the code, because it implies the correct calculation of the desired position of the channel indicator using the position of the window of the façade, the image appears indicator and the position of the mouse. Actually not hard I know, but nothing that see you with your mind on your dinner... You'll need a bunch of different reference types here to acquire the position necessary to window VI, indicator to display Image and mouse properties
- As 2 but without moving the indicator
- PRO: fast and easy to implement
- CON: not as easy to use since the indicator is stationary somewhere around the display of images and not at the mouse position.
- copy/typecast image SGL U8 image and move forward with overlays
- PRO: the response is improved to the level that I used
- CON: 'problem' with the update of the display image remains and therefore increases the response time the picture gets
- Use the property of the information string Image instead of creating an overlay
- PRO: would be faster than 1., since no required update picture
- k.o. - CON: property seems to be Read-Only, so no changes defined by the user of the text is possible
I guess my choice will be 2.
If anyone has other ideas on this subject, I will be always happy to hear about them.
- Use the property of the band of the art instead of creating an overlay
need to activate printing background colors and images, but this is not where it should be in the options/tools/int adv tab. Any ideas?
Try the following. Open IE11, click on the tools, mouse over the option 'Print' option and select "print preview
Select the layout, as shown below.
Place a check in the "case print the background color and images.
Click on the OK"" button.
J W Stuart: http://www.pagestart.com
ICH suche Hilfe zur Farbeneinstellung
und im speziellen muss ich eine Datei als PDF to CMYK und abspeichert mit Spotfarben
ist kein problem eine PDF to CMYK zu speichern aber wo finde ich die eEinstellung für die farben Spot?
ICH freue mich auf Hilfe und Danke
I am looking for help on the color settings
in particular, I need to create a PDF in CMYK with colors 'Spot '.
It s no problem for me to save a PDF to CMYK, but how/where can I find the setting for 'Spot colors '?
Pls help and thank you!
Best regards Mirela
You must assign a new range of (new spot channel) channel and remember when recording pdf that spot colors are enabled.
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