Photoshop :: Using The Colour Sampler With Curves To Adjust Colours?
Aug 31, 2005
can anyone tell the advantage of using the colour sampler in conjunction with the curves adjustment when correcting colour casts in a photograph?
I have a photograph with a slightly blue cast on it and ive corrected it by opening the curves pallete and ctrl clicking the image to place dots on the curves and adjusted the curve accordingly.
I have read that it is a good idea to place 4 color sampler points on the image and use them somehow in conjunction with the curves. But how? Has it got something to do with eyeballling the color sampler readouts in the info pallette. I cant work out what the advantage of doing it would be.
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Jan 11, 2012
It would be nice to have a colour sampler in Lightroom 4 to be able to monitor the use of the new RGB channels in the curve. Is there such an item, or is it possible to have something like that in the toolbox? Something like the Camera raw where you can select mulitple points - or use a modify key to change the eye dropper(Lightroom) into a colour sampler point?
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Aug 11, 2013
How do I see the object selected change colour dynamically as I adjust the colour sliders?
It seems the object only changes colour when I release the slider. But I want to see it dynamically change, so I can find the colour that works best without "hit or miss" - "trial and error" behaviour.
Yes... I'm aware some of you spend hours in colour programs creating a palette to work with. Good for you.
I'm just wanting to do it LIVE. Dynamically. In 2013. In Illustrator.
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Sep 5, 2013
I need to include several pages of pdfs in a book. The pdfs are scanned text documents, image only, with no security applied. When I open the pdf on my mac pro with photoshop cs6, I can make adjustments in the curves dialog, but when I close the dialog the adjustments disappear. The history pallette shows the action, but nothing happened. Also can make visible changes in a curves adjustment layer, but when I flatten the image the changes disappear. I've tried opening the pdf as grayscale, rgb, and cmyk; same result. I've also saved it in several different formats, then reopened it; same result. The file initially opens as a background layer with a locked symbol in the layers pallette. If I duplicate the layer and delete the background, the locked symbol disappears, but photoshop still won't accept changes made in the curves dialog. I tried it with cs4, and had a friend try the same things with on a pc; same result. Levels adjustment won't work, either.
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Jun 12, 2004
Im playing with doing some tee shirt designs on PS. Is there an easy way to get a full colour photo down to two or three colurs for screen printing purposes?
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Nov 22, 2012
I remeber at one time I was able to convert a color image into black & white by reassing Control, Shift, U. Then there was another command that would allow be to add teh original colors back in where I wanted them, giving me a color and black & white image. I just cannot remeber how I did the second step.
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Apr 4, 2006
I'm having trouble getting both of my printers to print out to the same tone/colour that is displayed on my Monitor. Neither are accurate
Is there anything I can do with my monitor settings, or my photoshop/illustrator colour settings so that what I see on the screen is what will be printed out.
The printers are :
1) Hewlett Packard 1220C
2)Epson Stylus 2100
They both print out differently.
For the HP printer I've looked at the 'Image Colour Management' and it states the 'ICM is handled by host'
For the Epson printer the Colour Management is set to 'Automatic: Windows will automatically select the best colour profile from the list of associated color profiles'
I know it's possible to change the Color Setting in Photoshop but I don't really know what to set it to, and who to set it so it's as close to my monitor display as possible. (I work with RGB colour)
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Nov 27, 2012
I've got a need to import a couple of colours OR add a couple of colours to the permanent colour.
I am using MX Photo&Grphic Designer and WebDesigner. I use webDesigner to create and administer a business website and use MX2013 for my graphics (Business graphics that use a pallet of company colours). Everytime I open a new document (tab) in MX2013 I need to recreate my company colours and name them. This is also the same in WebDesigner.
Is there anyway to add colours to the permanent colour pallet so they are available for every document as a default? This small item would save me some time and the frustration of constantly needing to add the same colours to my pages over and over.
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May 13, 2011
I'm trying to adjust the colour of my grid using the "Xustomize User Interface" dialog.
in Elements - Grids, I can only adjust the minor gridlines using "Set by intensity", or the major gridlines (0,0) using "set by color". There doesn't seem to be a way to adjust both elements independantly unless I'm missing something.
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Dec 14, 2012
Is there a way to adjust the colour balance on multiple layers at the same time?
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Jun 12, 2009
In Photoshop CS4 I have placed a color sampler/eye dropper crosshair on my RGB image. This shows what the color values are for that section of the image in the info palette. When I adjust curves on a layer, it changes the values of the color sampler to the values of the layer I am adjusting alone, thus preventing me from matching a color using curves and the color sampler. I have been through the preferences and opened every fly-out I could find on the info palette, and the curves dialog box, but have not found a selection that says "Sample all layers" anywhere. I am simply trying to show the values under the color sampler for all layers, similar to the functionality that existed in previous versions of photoshop.
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Mar 31, 2009
I used to take the color sampler and put a sample on my image. Then I created a curves layer. AND, by holding some combination of shift/ctrl/alt and clicking the color sample, the values would transfer to the red,green, and blue layers of my curves layer. From there I could make adjustments...
In CS4 I'm trying to do this, and I can't get it to work... It isn't the same as using the eyedroppers on the curve OR the hand above the eyedroppers. It actually copied the color sample values onto the individual color channels.....
How do I do this in CS4?
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Jul 22, 2013
If I place a point on an image and then make 10 adjustments is there a way to view how the color sample will change with each adjustment?
Right now I have to go back to the individual 'bg' layer I will call it to view the new color info after the adjustments have been made. I would like to see how the color info is changing for the layer the adjustment is being made to WHILE making the adjustments.
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Aug 16, 2013
In my Autodesk Inventor 2012 product design suit there is nothing displayed when I Press
Tools menu
Appliction Options
Colours Tab
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Feb 7, 2014
I use gimp to make layered stencils for spray painting...I reduce it to a couple of colours, seperate the colours into different layers and then cut them out...
When I do im left with a ghost type image where the original layer was..
example: [URL]...
Is there any way of avoiding this?
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Jul 9, 2012
I don't use the Color Sampler Tool much, but In checking something for another thread, I noticed the cursor now seems inconsistent with the cursors of the other tools.Basically, I expected it to drop the sampler on the little crosshair, and it dropped it instead at the end of the dropper.
This used to make sense, and it's still consistent with the Eyedropper cursor (and with prior versions of Photoshop). But I find that now I've gotten used to the other new cursors, most of which now define the hot spot at the upper-left, it didn't do what was expected.
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Feb 23, 2013
I am preparing a batch of images for test submission, for a stock photo library.Recently a person working for one of the visual effects studios in London happened to tell me that these strict agencies use some set of layers that can separate tonality and color values to check for banding, dirtiness, noise and all those technical flaws that the human eye can't notice on a monitor.He said they perhaps have an action for it so that they can review faster.
He said that it is known as 'Craze Curves' or 'Visibility Curves' technique.He further added that all the studios use it before giving the final files to clients so that there is no issue in printing afterwards.It is sort of a quality control check and has been used by digital and advertising agencies all over the world.
But now his email seems to have changed and I can't get in touch with him to know how to use the technique.
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Jul 9, 2012
Is it possible to make the color sampler tool show hsv values in the info panel instead of rgb?
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Oct 12, 2012
Can eyedrop sampler be set to use 0 - 255 scale instead of percentage?
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Apr 8, 2006
i'm working on a job with 2 colours. I already did this using CMYK and setting 2 of them to 100% and the other 2 at 0%. But people who press these posters say me that they always have to convert the CMYK file to a 2 colours file. Is there a way to set my colours to 2 colours instead of 4?
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Oct 6, 2008
I'm adjusting RGB images in CMYK preview mode using custom ICC profiles. In taking a color sample measurement using Color Sampler tool and Info Window, I can have the sample data display in RGB, CMYK or whatever.
Is there a way to get each sample to display both RGB and CMYK numbers side by side?? This would be very helpful when 'correcting by the numbers'.
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Jun 18, 2013
Whenever I create a new colour in the colour swatches it only stays there for a couple of actions while working on a project. I understand from others that once they create a colour it stays there. Why can't I get that to happen?
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May 21, 2013
I am using CS6 and the Replace Colour Tool no longer allows me to replace multiple colours when I select the + . So when I have the panel open and I highlight the +, I used to then be able to click on several spots in my image and all of the colours that are in those spots are added to the selected colours that will be changed by using the sliders.
But now, when I use the + it has exactly the same effect as not using it - I can only choose one colour or an other, I can't add.....I want to reset this to the original way that this works.
Currently I have to open the panel, change one variation of a colour, save it, then re-open the panel and do it again (and again and again) until all the colour variations I am trying to remove are are changed. I know I also have the 'fuzziness' slider, but it does not give enough control.
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Aug 19, 2013
I am designing a T Shirt for my ski club.I have taken an image from a banner (made in illustrator, full colour image attached) and I want to devide into a 3 colour image for the t shirt (I am only allowed 3 colours for printing).The colours I want to use are black, white and purple. The colour of the t shirt is a light blue.I want to then put the purple logo on top of the white and black too.So I'm after a black and white grunge background with a punchy purple logo on the top.All of this should be on a tranparent or, for design purposes, light bue (same as T Shirt colour) background.
how to split a full colour image into using only 3 (4 including transparent/light blue background) exact colours.
If I were going to black and white I might convert to grey scale and then paint areas to fully white or fully black using an overlay brush I don't think this works for me for more than just black and white though.
I have attached two of my attempts where I used the colour range selection and level adjustments. Niether was really successful though (one does not use the right colours or number of colours but looks quite cool).
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Aug 10, 2013
I will like to find out the colour code for the background colour on a particular web address. Unfortunately I am new here so not allowed to post links so will say this as creatively as possible. the address is theregentlagos (with the usual prefix beginning with w and suffix beginning with c for all websites). I am referring to the colour where the menu items like logo, home, brands etc are on.
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Feb 25, 2004
I've been asked to convert an image to 2 colour for printing. I have the image as a full colour CMYK layout (with layers), but the whole thing needs to be converted to 2 colour. I have the pantone reference numbers for the 2 colours it is to be converted to. I am familiar with the hue/saturation tool, but this just seems to convert it to one colour, and you have no fine control over the exact colour you want.
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Dec 19, 2011
I have copied some colour negatives using my digital camera. What is the best procedure for removing the orange base colour of the film prior to converting them to positives?
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Aug 17, 2012
I'm just started using inventor 2013 (from 2010) & the way colours/materials are applied has completely changed so I'm learning again from scratch.
Here's my issue: A customer has sent a casting to me in Parasolid format. When I open it, all the unmachined surface are blue & look a bit garish. However, the colours of the machined faces are ok & I wish to keep them.
So, I want to chage all the surfaces that are blue - I can use the picker & select all the blue faces seperately (by holding CTRL down & select each face one be one) but this is a pain & takes ages (there are over 200 faces)
I can see & edit the blue color in the manager but how do I tell Inventor to replace all - can it be done?
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Jul 16, 2013
I use EdHarvey's colour tint tool and it changes colour of the whole image, I'm looking for something similar but it only changes selected colour, so that the image is left with mutiple colour scheme rather than just one, any addon that can do this?
From this example, you can see the figure on the right is in a brownish colour scheme, what tool can I use in order to make it's colour scheme blue like the figure on the left?
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Jun 11, 2012
[gradient tool] I double-clicked the colour stop , but the colour swatch doesn't come outI hv tried a couple of times in CS 5 and also CS 6.
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May 23, 2013
Adobe Colour Management Print defaults seems to be assigning RGB meta to B&W pages and incurring Colour Print charges for B&W prints.I can manually change the print colour management to Printer managed on a per print basis instead of the default adobe colour managed which "cures" the issue but I do not seem to be able to save that setting as the default.
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