Server Color Management for Consistent Web Display
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Solution Overview
Problem
The challenge of achieving consistent and accurate color reproduction across different computing devices when documents are shared and accessed through various web browsers and devices, as existing color management systems struggle to handle diverse elements and profiles effectively in a cloud-based environment.
Innovation Solution
A method and apparatus for managing colors at a server that converts page elements to a common color profile, such as the standardized ICC sRGB color profile, before transmission to a client device, ensuring consistent display by appending or preserving color profiles based on the client's browser capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If color management is performed at the client device using device-specific color profiles, then color accuracy for locally processed documents is improved, but color consistency across web-based applications accessed through different browsers and devices deteriorates
Solution Approach 1:
The server performs preliminary color conversion of page elements to a common color profile (e.g., sRGB) before transmitting the modified page to the client device. This advance preparation ensures that all color elements in the webpage are standardized to a universal color space, eliminating inconsistencies that would otherwise arise from device-specific color profiles and browser variations.
Solution Approach 2:
The invention changes the color profile parameter of page elements from device-specific profiles to a standardized common color profile (such as sRGB). By modifying this critical parameter at the server level, the system ensures uniform color interpretation across diverse client devices and browsers, resolving the contradiction between maintaining color accuracy and achieving cross-device consistency.
2Adaptability or versatility
If multiple color profiles are maintained for different document elements, then flexibility in handling diverse elements is improved, but complexity of color management increases
Solution Approach 1:
The server merges multiple color profiles into a single common color profile by converting all page elements (images, CSS styles, SVGs) to the standardized color space. This consolidation eliminates the need for complex multi-profile management at the client device, reducing color management complexity while preserving the ability to handle diverse document elements through uniform processing.
Solution Approach 2:
The common color profile serves as a universal standard that handles all types of color elements in web pages (images, styles, graphics) through a single standardized approach. This universal solution replaces the need for element-specific color profile management, simplifying the overall system while maintaining versatility in handling diverse webpage content.
3Loss of information
If color profiles are embedded with each document element, then color information preservation is improved, but file size and processing overhead increase
Solution Approach 1:
The server performs preliminary color conversion and embeds a single common color profile with the modified page before transmission. This advance processing eliminates the need for multiple embedded color profiles in the original document elements, reducing the overall data volume while preserving color information through the standardized profile that accompanies the converted elements.
Data Source
AI summary
Method and apparatus for color management of documents retrieved and manipulated by a server based application and displayed on a client device through a browser application. Page elements of documents are manipulated to provide consistent and/or accurate color reproduction on the client device. Pages include untagged images, images tagged with color profiles, and tagged or untagged page elements specified by hex color values. Color values for images and untagged page elements specified by hex color values are adjusted by the server application before transmission to the client device to account for properties of browser applications and operating systems of different client devices.