The evaluation process may need to crop and/or clip the provided images to make them suitable for subjective evaluation.
#Compress jpeg software
Contributors are also expected to provide the evaluation committee sufficient rights to allow usage of the provided software and provided input data for the purpose of evaluation of their own, and other contributions to the challenge. Contributed test images must not previously have been compressed using any lossy coding scheme. Images should be either grey-scale or sRGB with 8 or 12 bits per component, encoded in PNM. Contributors may also provide a maximum of four (4) additional test images at their discretion.Contributors are expected to compress the provided test material with their technology to bitrates that will be communicated by the organizers the compressed codestreams along with the encoder options have to be included in the contribution.Contributors are asked to identify how additional features such as spatial scalability, resolution accessibility, amneability to subjective optimization or representation of images of higher bitdepths, high dynamic range, hyperspectral data etc.Contributions are expected to be accompanied with detailed instructions, potentially including options to optimize to particular evaluation criteria such as PSNR, MS-SSIM or subjective quality or more.Software is expected to implement a decoder to the PNM still image format.
#Compress jpeg code
An implementation of algorithm in a form that allows stand-alone execution on a stand-alone computer, ideally in compilable source code form.Contributions should provide a description of the basis of the compression algorithm as compression performance alone is not the sole evaluation criterion.The objective of this call is to have an independent evaluation of the state of the art, and how contributions position themselves compared to existing still image compression standards. Contributors of new image coding technologies may find the ICIP to be a convenient and robust mechanism for promoting new approaches, and bringing new approaches into application. While the challenge is independent of any standardization body, it should be noted that the ISO working group JTC 1/SC 29/WG 1, known as JPEG, has an open Call for Information (CfI) on new image coding technologies and contributors to this challenge may want consider contribution of their technology as input to the ongoing JPEG activity. By this challenge, the organizers of the event are keen to evaluate the state of the art image compression technologies.
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