RAW File Compatibility Check for Reliable Image Printing
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Solution Overview
Problem
Conventional image output devices transmit JPEG files to printing apparatuses even when RAW files are stored, failing to utilize the characteristic processing of RAW files, which are not developed and subject to various image processes.
Innovation Solution
An image output device and image processing apparatus exchange compatibility information to determine if the image processing apparatus can process RAW data, and if so, transmit the RAW data for processing, ensuring reliable processing by utilizing the RAW file's characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the image output device transmits JPEG files instead of RAW files to ensure compatibility, then the reliability of print processing is improved, but the ability to utilize RAW file characteristics is lost
Solution Approach 1:
The image output device performs preliminary actions by first transmitting a confirmation command to query the image processing apparatus's RAW file compatibility, then decides whether to transmit RAW or JPEG files based on the response. This preliminary compatibility check enables the system to adaptively choose the appropriate file format, ensuring both reliability and RAW file utilization.
2Adaptability or versatility
If the image output device transmits RAW data to utilize its characteristics, then the image processing capability is improved, but the compatibility with the image processing apparatus may be reduced
Solution Approach 1:
The system implements feedback by transmitting a confirmation command to the image processing apparatus and receiving a response about RAW file compatibility. Based on this feedback information, the image output device intelligently decides whether to transmit RAW or JPEG files, ensuring compatibility while maximizing RAW file utilization when supported.
3Ease of operation
If the image output device always transmits JPEG files, then the ease of operation is improved, but the loss of information from RAW file characteristics increases
Solution Approach 1:
The image output device performs preliminary compatibility checking by transmitting a confirmation command before actual file transmission. This preliminary action automates the decision-making process, maintaining ease of operation while preventing information loss by transmitting RAW files when the apparatus supports them.
4Reliability
If the image output device queries compatibility information before transmission, then the reliability of RAW data processing is improved, but the loss of time for additional communication increases
Solution Approach 1:
The system performs the compatibility query as a preliminary action before actual file transmission. Although this adds communication time, it ensures reliable RAW data processing by confirming apparatus capability in advance, preventing failed processing attempts and retransmissions.
Data Source
AI summary
A digital camera 40 transmits to a printer 20 a command for transmitting RAW format compatibility information which is information of a RAW file format directly printable by the printer 20. Upon receipt of the RAW format compatibility information from the printer 20, the digital camera 40 determines, on the basis of the received RAW format compatibility information and the format of a RAW file stored in a flash memory 46 thereof, whether the RAW file can be directly printed by the printer 20. If the RAW file can be directly printed, the digital camera 40 transmits the RAW file to the printer 20. If the RAW file cannot be directly printed, the digital camera 40 transmits to the printer 20 the RAW file and a development enabling parameter which enables analysis of RAW data included in the RAW file as image data. The printer 20 prints the RAW file with the use of the development enabling parameter.