Color Management

What is LAB Color Space?

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What is LAB Color Space?

SHARE NOW  LAB color space is the engine that powers color management Video transcript: The LAB color model is a three axis color system and LAB colors are absolute, meaning that the color is exact. It’s what’s known as device independent; meaning that the LAB color space is the only way to communicate different colors across different devices. An object’s color is measured in LAB color with a spectrophotometer. 00:23 It is a three axis system. The first axis, the L-channel or Lightness, goes up and down the 3D color model and it consists of white to black – and all of your gray colors will be exactly right down the center. All neutral colors will be relatively in the center of this axis. 00:43 The A axis, goes from cyan color across to magenta/red color. And the B axis goes from blue to yellow. So within this area we’re going to plot visual or reproducible colors based on the gamut or the profile of the device we have. 01:05 So we’re going to turn on the sRGB color profile. Most monitors will display in sRGB and sRGB is preferred for any type of internet or web application. We’ll get this thing spinning here and you can see the volume of the colors that you can reproduce from this additive color model. Obviously since dealing with projecting light, they’re very bright colors and they’re very saturated. When to use LAB color space – Matching paint colors to printed media – Matching fabric colors in a catalog or website – Communicating your favorite Pantone color to another media form – LAB color space is the back-bone of all color management between devices in the color workflow   What questions do you have regarding LAB color mode? Please leave your comments below… (30 votes, average: 4.67 out of 5) Loading...     SHARE...

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Installing Printer Profiles (MAC): Where Do These Files Go?

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Installing Printer Profiles (MAC): Where Do These Files Go?

SHARE NOW Today’s VIDEO will explain installing printer profiles so they will load correctly into Adobe Photoshop. Take the first step in discovering how to soft-proof your CMYK images in your display or get the best CMYK conversions. BTW, this all starts with a calibrated monitor. You’re on your way to a color managed workflow! Is soft proofing a useful process for you? Please leave your comments below… Transcript of Video Hi. This is Rick Rys from HiDefColor.com. 00:05 Today we’re going to demonstrate installing printer profiles into Adobe Photoshop. Now, I have already downloaded a zip file containing the three color printer profiles – ICC printer profiles – and we’re going to unzip and open up the folder. Inside the folder, you will see the three color printer profiles, the GRACoL and SWOP coated printer profiles. 00:28 And from here we’re going to open a new window into the finder and go into the Macintosh hard drive. We’re simply going to follow a path from Macintosh hard drive, to Library, to ColorSync, to Profiles, and importantly, the Recommended folder of profiles 00:49 which will make any ICC aware compliant program will recognize the profile. From here, we’re going to select our three printer profiles and we’re going to drag them into the Recommended folder. 01:03 From here we can simply close are windows and boot up Adobe Photoshop. And once were booting up from scratch, Photoshop will recognize the printer profiles files and load them accordingly. 01:18 So we’re going to go ahead and open an image, use our embedded profile, and just simply go under the proof set up under custom, and then we pull down the window and now we can see our individual profiles are now inside Photoshop and we can do our soft proofing. 01:35 Look for upcoming tutorial on soft proofing in Adobe Photoshop. 01:40 Until next time, take care and have a good day   SHARE...

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Gamut! That’s Not My Color: Mac Monitor Calibration Made Easy

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Gamut! That’s Not My Color: Mac Monitor Calibration Made Easy

SHARE NOW I can’t stress enough how important it is to calibrate your monitor properly. If a picture is worth a thousand words, now you know what those words are telling you. Watch how to calibrate a monitor using i1Profiler software along with the i1Pro2 spectrophotometer on your Mac OSX. Select the proper white point (color temperature) of your display. Adjust settings for proper luminance (brightness) that will match your prints or press sheets to your screen display. Mount the i1Pro2 to the monitor and run the color control patches. The i1Profiler software will read the known color values and create an accurate ICC profile of your monitor/display and store the new calibrated profile in your system. Note: Once your monitor is properly calibrated, use the FREE Photoshop Hi-Def Color Action script and watch your images jump off the screen and on paper! Take the first step in matching your screen to print on your Mac OSX. Do you have challenges matching your prints to your display? Please leave a comment below… Transcript of Video This is Rick Rys from HiDefColor.com. Today we’re going to go through the process of calibrating your monitor using the i1Profiler software suite and the i1Pro2 spectrophotometer from XRite. Once you’re inside i1Profiler, we’re going to click the Display Profiling box, and we’re going to take it into the Settings mode. In here, we’re going to select our display, which is our color LCD, and pick our white point of our monitor. [0:30] We have multiple options here. I suggest that you go with the D65, which is 6,500 Kelvin temperature. Our luminance, we want to set this to 100 candelas per square meter. This will simulate more of the process or the environment looking at your printed material. Most monitors are too bright, causing your prints to come out too dark when your monitor calibration is incorrect . [0:56] From here, we’re going to leave the ambient lights mark control sensor off. We’re going to click the Next button. [1:06] From here, we’re going to calibrate the i1Pro2 spectrophotometer. I’ve placed the spectrophotometer on the white point balance point, the calibration target, and I’ll simply hit the Calibrate button. [1:21] From here, the spectrophotometer will be referencing a known white point that is neutral. That will balance out the sensors inside the spectrophotometer. [1:34] From here, we’re ready to start the process. At this point, we’re going to leave our Automatic Display control checked. The Adjust Brightness/Contrast and RGB Gains…we don’t want to mess with this button right here. [1:49] Here’s our different color patches that we’re going to be displaying on the screen, which will be read by the spectrophotometer. We’re going to start the measurement process. At this point, I’m going to hang the spectrophotometer onto the monitor to begin the calibration process. The device is now connected to the display. I’ll...

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VIDEO: Difference Between sRGB and Adobe RGB Color Gamuts Explained

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VIDEO: Difference Between sRGB and Adobe RGB Color Gamuts Explained

SHARE NOW Have you wondered what the difference between sRGB and Adobe RGB profiles? There both RGB aren’t they? Yes, they are both RGB, but they are completely different in color appearance. It’s interesting to note that the same RGB color values will display completely different colors on your monitor. As a general rule, I will use sRGB for anything that has skin tones or the image contains a softer mood. I use Adobe RGB for landscape, food, architecture and any other natural setting where I want maximum color. Watch and listen to the differences explained in 3D wire frame of the color volume for each profile. By using Adobe RGB you will obtain much richer color on press when printed on coated stock. Questions? Leave your comments below… Transcript of Video Today we’re going to explain the differences between the two common RGB color profiles, sRGB and Adobe RGB. Right now you’re looking at 3-dimensional wire frame of the sRGB color profile. [00:18] If we take a look from the top down, along the bottom you’ll see an outline in two dimensions of the size of the color gamut. [00:30] Within Color Think, we can quantify the number of colors in the gamut. You’ll notice here that the gamut volume is approximately nine hundred thousand different colors. A very big color profile. [00:45] sRGB is known as the lowest common denominator so depending on whether you have a high-end Eizo monitor or low-cost Dell monitor, whatever it happens to be, it kind of dummifies the color so that the color looks consistent on each of those devices. [0:01:00] Now when we move up into the Adobe color profile, (going to turn on here) notice along the bottom that it’s gotten much larger and you can see all along the bottom here, especially in the cyan and the green, that it’s pretty much proportional in that you can see its much larger. [0:01:20] What I’m going to do here is I’m going to turn up the opacity and you’ll notice that the Adobe RGB color profile will pretty much encompass the entire sRGB profile. And notice how much larger it is now. And to give you an idea as far as to quantify the colors within Adobe RGB, we’re looking at 1.3 million colors. Almost forty five percent more colors them which you’re going to get with sRGB. [0:01:50] Now how does this apply within Photoshop working with your images? I’m going to boot-up Photoshop and hide the background. And you’ll get an idea when I bring in an image here, the image looks really good. [0:02:08] This is shot outdoors and we’re going to assign our profile. You’ll notice right now that we are in the sRGB color space and the image looks very good. If we toggle into the Adobe RGB color space, notice what happens with the...

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Free Color Correction Will Make You Hungry

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Free Color Correction Will Make You Hungry

SHARE NOWAs an introduction to HiDefColor.com, I am offering free color correction services to trigger emotional responses to your print/web marketing production. Drop me a note to take advantage of this free color service and improve your marketing effectiveness. For a visual comparison: Which dish would you order? SHARE...

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VIDEO: How RGB Color is Converted to CMYK in Photoshop

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VIDEO: How RGB Color is Converted to CMYK in Photoshop

SHARE NOW I have been asked the question many times before: why does my photography/image look so flat when i convert RGB to CMYK color? Well, the answer is science. RGB is additive color theory. Red, green and blue light when combined produce white light. When red, green and blue light are turned off, there is no color therefore resulting in black. This is how your monitor and television function. CMYK is subtractive color theory. Cyan, magenta and yellow ink act as filters to absorb and reflect light that is reflected off paper. When light reflects off paper where no ink is applied, this is white. When light reflects where all three colors are present, no light reflects back resulting in black. Cyan ink absorbs red light; magenta absorbs green light; and yellow absorbs blue light. This is the basic theory of subtractive color. It’s important to note that a fourth ink (black) is used to create more contrast and deeper blacks/shadows in images. The amount of black ink is dependent on the conversion process that is used, for example medium GCR (Gray Component Replacement). RGB color uses projected light which is much more brighter than light reflecting off a substrate with CMYK color. The additive light (RGB) creates a color gamut that is much larger than subtractive (CMYK) color gamut. Does this explain RGB to CMYK conversion for you? Please place your comments below… Transcript of Video Hi. This is Rick Rys from HiDefColor.com. Today we are going to discuss the conversion from the RGB color space into the CMYK color space. [0:14] RGB is an additive color space meaning that red, green, and blue light together will create white. When red, green, and blue light are off, they will be black when it is projected onto screen, or onto a monitor. [0:31] CMYK is the subtractive color theory meaning that the cyan, magenta, and yellow inks act as filters. As light bounces off of the paper, it reflects up through the cyan, magenta, and yellow inks, which in turn will either absorb or reflect different color wavelengths. [0:52] The opposite of red is cyan, the opposite of green is magenta, and the opposite of blue is yellow. The subtractive colors are the gray components of the additive colors meaning that when they’re put together, they create gray, or black, or white. [1:07] The LAB color model–let me turn this off here–is a 3-axis color system, and the LAB colors are absolute meaning that the color is identical. It’s across what’s called a device-independent, meaning that the LAB color space is the only way for you to communicate different colors across different devices. [1:35] Now, it is a 3-axis system. The first axis, the L-channel, or lightness goes up and down the 3-D color model, and it consists of white to black, and all of your gray colors will...

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VIDEO: Choosing CMYK Color Profile/Gamut Explained

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VIDEO: Choosing CMYK Color Profile/Gamut Explained

SHARE NOW There is no such thing as a universal CMYK. The fact that an image is in CMYK does not mean the color will be correct for a printing press. CMYK is a ‘device dependent’ color space, meaning that the CMYK data will print differently from one CMYK device to another. Every CMYK device has it’s own color profile. Knowing which CMYK color profile to convert to from RGB is very important to the success of color quality. A CMYK printer profile is the characteristic or behavior of a printing condition or process. Today we will demonstrate the differences between the GRACoL (general requirements for applications in commercial offset lithography) and SWOP (specification for web offset printing) CMYK color gamuts, or CMYK printer profiles. The GRACoL printing specification has a larger CMYK color gamut than the SWOP printing specification. This VIDEO demonstration shows the GRACoL and SWOP CMYK color gamuts in a three-dimensional wireframe. The color wireframes are plotted in the LAB color space. Create an even larger CMYK color gamut by printing with FM/stochastic screening! The LAB color space is ‘device indepedent’, meaning that LAB color data is absolute. LAB is a universal color space and is the best way to communicate the appearance of color. Which color profile looks better to you? Please leave your comments below…  Start Here and Download our G7 CMYK profile    Transcript of Video Hi. This is Rick Rys from HiDefColor.com. 00:04 Today we’re going to talk about the CMYK color space and the two most common CMYK color printer profiles. It’s important to note that a color printer profile is the behavior or the characteristics of a printing condition. It’s important to note that when dealing with your commercial printer to ask them which color printer profile or which color specification they print to and use that profile. Here at HiDefColor.com, we support the GRACoL color specification. 00:40 The important thing to note is we’re going to be – you’re actually looking at CMYK color model is plotted in the LAB color space. The LAB color space is a three axis determination of what a color is going to be, so it’s absolute. 01:00 The first axis is the L channel or the lightness which goes from white to black. Now that is going from top to bottom and it’s also important to note that along this axis is where your grays are going to be; your gray balance here, fifty percent gray, seventy five, twenty five and so-on are going to be down the center of that axis. 01:22 The second axis, the A axis goes from a cyan/green over to magenta/red color and the B axis goes from blue to yellow. So within this area here is where we’re going to plot all of our colors. 01:38 We’re going to go from our lightest colors up here, to our darker...

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VIDEO: What Color Profile Should I Assign in Photoshop?

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VIDEO: What Color Profile Should I Assign in Photoshop?

SHARE NOW Assigning an RGB color profile in Photoshop will have a great effect to how your images are displayed and printed. There is a big difference between sRGB and Adobe RGB color gamuts. Adobe RGB has a larger color gamut than sRGB and will produce more saturated color. However, it’s not meant for all RGB images. This VIDEO tutorial will step through the confusion of which RGB color profile to use with your images in Adobe Photoshop CS. Most digital cameras save images with sRGB color profile. sRGB color gamut is smaller than Adobe RGB. While the RGB color values stay the same, the resulting color that is displayed is significantly different. For higher color saturation, choose Adobe RGB color profile. While not for every image, Adobe RGB is a preferred color profile to assign to your images. All RGB profiles are not the same and will produce different color when printed even though the RGB values are the same. Note: Try this FREE Photoshop Hi-Def Color Action Script and forget about assigning any profiles in Photoshop. Use this script and automate  your workflow with InDesign by placing these images and bypass converting any of your images to CMYK! Recommended usage of Adobe RGB profile: Architectural Landscapes Animals Nature Sports Science Food Recommended usage of sRGB: Portraits-People In conclusion, I prefer to use Adobe RGB on most everything except portrait photography. Try both and see which one works best for you. Have you had profile challenges before? Please leave a comment below… Image: LM Studios (2 votes, average: 3.00 out of 5) Loading... SHARE...

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InDesign RGB to CMYK Conversion: No Photoshop Required

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InDesign RGB to CMYK Conversion: No Photoshop Required

SHARE NOW This VIDEO tutorial will show you how to automatically convert RGB to CMYK in InDesign, without the use of Photoshop. Running a color managed workflow has it’s benefits. One of which is having InDesign RGB to CMYK conversions. It’s not necessary to have multiple files for the same image. Imagine the time savings and hard disk space! The important part to remember is to have tagged RGB images to start with. Color management works on the principle of ‘input’ to ‘output’ ICC profiles. If an image does not have a profile attached, the ACE (Adobe Color Engine) will not understand how to re-map the color conversion from RGB to CMYK. These settings will ensure print-ready PDFs for faster turnaround times and no output errors in prepress. Compression settings will ensure for quick upload times to your printer. Note: Use this FREE Photoshop Hi-Def Color Action Script and automate your color processing with breath-taking Hi-Def images! How much time will this save you? Please leave your comment below…   Transcript of Video Hi. This is Rick Rys from HiDefColor.com 00:04 Today’s tutorial Never Convert to CMYK is a cool little export option out of Indesign CS that will eliminate the need to ever convert RGB to CMYK. 00:15 This cool little RGB workflow will eliminate a lot of disk space and save you a lot of time along with a lot of confusion regarding having two files of the same image. 00:27 You can see we have an image here that’s created in Indesign CS it consists of an RGB bitmap image, you can see the color space is RGB, and it is tagged with the Adobe RGB color profile. 00:42 We also have a CMYK Adobe Illustrator image which is a vector graphic. 00:50 It’s important to note that the image is created with different values of gray. This is important because these color values of gray are built with black only and we want to make sure we do not re-separate this into a four color gray. 01:06 We also have a series of color swatches that are placed as Pantone colors. Also, take note that we are using the LAB values of these colors. 01:21 So, once we are ready to go to press, we’re going to do a simple export option out of Indesign CS. 01:30 We’re going to utilize the Adobe PDF X-4 standard. Once we select PDF X-4, we’re going to save our file and we’ll go into the export Adobe PDF presets and select X-4; change the compatibility to PDF 1.7 standard; select our page and then go through the individual tabs here. 02:00 Under compression, we want to keep these values the same. We’re going to downsample to 300 pixels per inch when our image is greater than 450 pixels per inch. This will allow for a much faster upload to the color server at...

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What Does Device Dependent and Device Independent Mean?

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What Does Device Dependent and Device Independent Mean?

SHARE NOWThis is an interesting and sometimes confusing question. It has to do with different forms of color spaces and how a device renders color information. Device Dependent refers to the CMYK gamut a printer/press can print to – it’s behavior. All printers/presses print differently, therefore they have Device Dependent profiles, or color gamuts. Basically, CMYK values for one device will print differently on another CMYK device. See the difference here between SWOP and GRACoL CMYK color profiles – these are device dependent profiles illustrated in the LAB color space. Another device dependent also refers to between the difference in Adobe RGB and sRGB color profiles. Device Independent refers to the LAB Color Space. LAB values (50,0,0 – neutral gray) are absolute values that have a known color value. This is the color sensation that are eye processes and how spectrophotometers communicate color values between devices. The LAB Color Space is the common denominator in communicating color values in Color Management workflow. SHARE...

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