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Image file formats

About: Image file formats is a research topic. Over the lifetime, 10349 publications have been published within this topic receiving 102407 citations.


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Patent
05 Jun 2000
TL;DR: In this article, a set of equations, the solution to which may be numerically computed and whose solution constitutes an optimal relative mean square error quantization for a signal with noise was derived.
Abstract: There are disclosed methods for quantizing image data with signal-dependent noise to a fewer number of values so that noise information is discarded while signal information is maintained. This is achieved by deriving a set of equations, the solution to which may be numerically computed and whose solution constitutes an optimal relative mean square error quantization for a signal with noise. Two low complexity explicit heuristic formulas for quantization are also provided. Also disclosed are methods for compressing image files containing signal dependent noise by means of near lossless compression so as to maintain signal information in the compressed data while discarding noise information, and methods for compressing multi-component color image data so that psycho-visually significant color information is maintained in the compressed data while other color information is discarded and a method for compressing multi-component color image data which is linearly proportional to high dynamic range light intensities so that color information significant for display and printing is maintained in the compressed data while other color information is discarded.

29 citations

Journal ArticleDOI
TL;DR: It is demonstrated that not only can the proposed method detect steganography but, if certain criteria are met, it can also reveal which steganographic algorithm was used to embed data in a JPEG file.

29 citations

Patent
08 Dec 2008
TL;DR: In this article, the problem of effectively informing a user of communication equipment that image data of a desired category has been uploaded, when the image data uploaded to a server by an image processor is used in the communication equipment is addressed.
Abstract: PROBLEM TO BE SOLVED: To effectively inform a user of communication equipment that image data of a desired category has been uploaded, when the image data uploaded to a server by an image processor is used in the communication equipment. SOLUTION: The image processor determines a category for categorizing image data based on the attribute information of the image data, creates an update information file for each category, and uploads the file with the image data to an image managing server 101. A client device 103 has registered in advance the address of a desired update information file and periodically checks the update information file in the image managing server. When the update information file indicates that another image data has been added to the image managing server, the image data is downloaded according to a file path described in the update information file. COPYRIGHT: (C)2009,JPO&INPIT

29 citations

Patent
09 Dec 2009
TL;DR: In this article, an image processing apparatus includes: a document detection section for detecting, according to image data of a document image, a processing condition to be applied at a time when the document image is displayed or printed; a draw command generation section for generating a draw commands for controlling a computer so as to cause the computer to perform display or printing after image processing in accordance with the image processing condition, at the time when document image was generated, and a formatting process for generating an image file in which the draw command was added to the image data that has not been subjected to
Abstract: An image processing apparatus includes: a document detection section for detecting, according to image data of a document image, an image processing condition to be applied at a time when the document image is displayed or printed; a draw command generation section for generating a draw command for controlling a computer so as to cause the computer to perform display or printing after image processing in accordance with the image processing condition, at the time when the document image is displayed or printed; a formatting process section for generating an image file in which the draw command is added to the image data that has not been subjected to the image processing. This makes it possible to rapidly generate an image file of image data obtained by reading a document and also makes it possible to cause a device that displays or prints the image data to perform appropriate image processing.

29 citations

Patent
Sunil Gowda1, Tracy Ard1, Rafael Sagula1, Arnold N. Blinn1, Todd Buiten1 
05 Jun 2008
TL;DR: In this paper, an image service uses a uniform resource locator (URL) or other identifier to retrieve dynamic content presentations from the Internet and uses a set of imaging parameters to render HTML files into a static image that can be presented on a static display device.
Abstract: An image service uses a uniform resource locator (URL) or other identifier to retrieve dynamic content presentations from the Internet. The image service uses a set of imaging parameters to render HTML files into a static image, sized appropriately, that can be presented on a static display device. A user enters URLs identifying locations of dynamic content within a configuration interface on the image service. The image service then dynamically pulls the selected content from the identified web sites, converts the web pages, or portions thereof, into static digital image files, and downloads the image files for display on a static display device.

29 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
20238
202222
2021124
2020269
2019373
2018382