Troubleshooting Color Management ICC Profiles (2)

When you want to make a web page, you need to use a code to explain it to a web browser. This code is called HTML code. An HTML file contains all the text information that will be displayed on the web page. It also includes some instructions for the browser, such as where the text should be placed and what the display mode is. If there are some other forms of resources, such as pictures, sounds, animations, etc., the HTML file will tell the browser where to find these resources, where they are placed on the page, and so on. The HTML file implements these functions with identifiers.

Almost all standard sites require the sRGB color space. In most of the old standards, such as HTML, there are no HTML instructions for selecting a profile. However, this just means that a properly functioning web browser has an sRGB ICC profile that uses all the resulting RGB values. Using new network standards, such as CSS, SVG, and XSL, allows multiple methods to use a specific color space, and ICC profiles are just one of them.

When sending an HTML file to many different users, the color management system needs to make each of these users' correct browsers use an sRGB ICC profile to convert their sRGB colors into the user's displayed color space and pass The RGB profile sends the characterization information to the user.

We often see two different file extensions in the ICC profile: one is "*.icc" and the other is "*.icm". Is there a difference between them?

There is no difference between them. The "*.icc" and "*.icm" files are identical except for the suffixes. "*.icc" is Apple's first for the Mac. The PC of Windows uses "*.icm".

Is there an application that can read ICC profiles?

Mac OS X has a built-in Profile Inspector and Profile First Aid. Users can find these utilities in Mac OS X 10.1 or later. Its application is called the ColorSync utility. It has several small applications inside it, including Profile Inspector and Profile First Aid.

The Profile Inspector is a utility for previewing profile information, such as previewing the color space, version number, and profile type stored in the profile header. It can also display tag-level information for signatures, data types, and capacity.

Profile First Aid is a utility that verifies the contents of ICC profiles installed on the computer. If the profile does not match the ICC profile specification, an error has been reported. Although some errors may not cause problems in typical usage, it is best to modify the characteristics files that are inconsistent with the ICC profile format.

How to get the characteristics of the monitor, inkjet printer, scanner, printer?

We already know the “preset” profile for different devices, but except for the standardization process, there is no specific profile recommendation. The profile developed for a particular device is usually better because it depends on how the parameters of a particular device are set, and these parameters change from one user to another. For example, the lighting conditions of a digital camera, the brightness and contrast of the display, and the print matrix of the printer. The profile can only be defined if you understand the basic conditions of the user and these basic conditions can be maintained. At the same time, some characteristic document creation software and measuring instruments are also required in order to correctly create the characteristic document.

The profile creation software is available from Agfa, Fuji, Gretag-Machbeth, Heidelberg, Kodak, Monaco and others. Each software they provide to create a profile lists all of your equipment. You also need a color measurement instrument to measure the color data of printers, proofers, and displays. Measuring instruments are available from companies such as Gretag-Machbeth, X-rite, Alwan Color Expertise, and Color Savvy. Specific color patches used by the scanner are available from companies such as Fujifilm, Kodak and Agfa.

What is HTML? Does HTML support ICC color profiles with specific identifiers?

When you want to make a web page, you need to use a code to explain it to a web browser. This code is called HTML code. An HTML file contains all the text information that will be displayed on the web page. It also includes some instructions for the browser, such as where the text should be placed and what the display mode is. If there are some other forms of resources, such as pictures, sounds, animations, etc., the HTML file will tell the browser where to find these resources, where they are placed on the page, and so on. The HTML file implements these functions with identifiers.

Almost all standard sites require the sRGB color space. In most of the old standards, such as HTML, there are no HTML instructions for selecting a profile. However, this just means that a properly functioning web browser has an sRGB ICC profile that uses all the resulting RGB values. Using new network standards, such as CSS, SVG, and XSL, allows multiple methods to use a specific color space, and ICC profiles are just one of them.

When sending an HTML file to many different users, the color management system needs to make each of these users' correct browsers use an sRGB ICC profile to convert their sRGB colors into the user's displayed color space and pass The RGB profile sends the characterization information to the user.

We often see two different file extensions in the ICC profile: one is "*.icc" and the other is "*.icm". Is there a difference between them?

There is no difference between them. The "*.icc" and "*.icm" files are identical except for the suffixes. "*.icc" is Apple's first for the Mac. The PC of Windows uses "*.icm".

Is there an application that can read ICC profiles?

Mac OS X has a built-in Profile Inspector and Profile First Aid. Users can find these utilities in Mac OS X 10.1 or later. Its application is called the ColorSync utility. It has several small applications inside it, including Profile Inspector and Profile First Aid.

The Profile Inspector is a utility for previewing profile information, such as previewing the color space, version number, and profile type stored in the profile header. It can also display tag-level information for signatures, data types, and capacity.

Profile First Aid is a utility that verifies the contents of ICC profiles installed on the computer. If the profile does not match the ICC profile specification, an error has been reported. Although some errors may not cause problems in typical usage, it is best to modify the characteristics files that are inconsistent with the ICC profile format.

How to get the characteristics of the monitor, inkjet printer, scanner, printer?

We already know the “preset” profile for different devices, but except for the standardization process, there is no specific profile recommendation. The profile developed for a particular device is usually better because it depends on how the parameters of a particular device are set, and these parameters change from one user to another. For example, the lighting conditions of a digital camera, the brightness and contrast of the display, and the print matrix of the printer. The profile can only be defined if you understand the basic conditions of the user and these basic conditions can be maintained. At the same time, some characteristic document creation software and measuring instruments are also required in order to correctly create the characteristic document.

The profile creation software is available from Agfa, Fuji, Gretag-Machbeth, Heidelberg, Kodak, Monaco and others. Each software they provide to create a profile lists all of your equipment. You also need a color measurement instrument to measure the color data of printers, proofers, and displays. Measuring instruments are available from companies such as Gretag-Machbeth, X-rite, Alwan Color Expertise, and Color Savvy. Specific color patches used by the scanner are available from companies such as Fujifilm, Kodak and Agfa.