Validating scanner profiles
You can select this file by clicking on the '@' button next to Color | Scanner IT8 data.Note that the settings in the Color tab do not affect the profiling.Nessus Professional and Nessus Manager features 2 PCI related scan templates: Internal PCI Network Scan This template creates scans that may be used to satisfy internal (PCI DSS 11.2.1) scanning requirements for ongoing vulnerability management programs that satisfy PCI compliance requirements.These scans may be used for ongoing vulnerability management and to perform rescans until passing or clean results are achieved.Scanner profiling is the process of determining the precise color characteristics of a scanner or digital camera.Vue Scan uses IT8 targets (also called Q60 targets) to do this. You can also obtain IT8 targets from this source: Vue Scan normally reads and writes the ICC profile for the scanner using the file Credentials can optionally be provided to enumerate missing patches and cilent-side vulnerabilities.Note: while the PCI DSS requires you to provide evidence of passing or "clean" scans on at least a quarterly basis, you are also required to perform scans after any significant changes to your network (PCI DSS 11.2.3). Tenable Network Security, Nessus, Security Center Continuous View, Passive Vulnerability Scanner, and Log Correlation Engine are registered trademarks of Tenable Network Security, Inc.
Manufacturers often supply ICC profiles with driver software CDs or on their websites. They can be inaccurate or out of date, but I've had good luck with profiles for the Epson 2200.
The RGB image of the chart will be taken into a special profiling application which will compare the scanned image's RGB values captured on each patch with the relevant () numbers in the data file. The resulting profile will tell Photoshop or the scanner software how to convert a scanned image's RGB values (from 0 to 255) into the 'Profile Connection Space' ( which often have a smaller colour gamut than the scanner.
With prosumer scanners you may prefer to use more professional software such as Vuescan or Silverfast.
Of course with profiled RGB scanning you can forget about printing! ICC profiles can be used in all 'ICC-savvy' applications such as Adobe Photoshop or certain scanner/camera imaging software, to convert images from one colour space to another, i.e from the scanner's own RGB colour space to a 'standard' RGB working colour space such as colour chart is a colour transparency or reflection copy original containing carefully defined colour and grey patches.
This comes later at the end of the editing stage (usually in Photoshop), when the image is converted using the appropriate CMYK profile, such as 'Fogra 39'. They are available for several modern (but not older) photographic emulsion types.
The profiles are for 14 dpi for Premium Luster, Semigloss, Glossy, Enhanced Matte, Watercolor - Radiant White, Velvet Fine Art, and Premier Art™ Water-Resistant Canvas. Finding them can be a little tricky because you can't link directly to Epson pages, and as of February 2004 they're not yet on Epson USA's Drivers & Downloads page for the 2200.