{"about":{"site":"https://codewithpapers.app","non_affiliation":"Code with Papers and Syntology are not affiliated with, endorsed by, or sponsored by Papers with Code, Meta, or the pwc-archive mirror.","licence":"CC BY-SA 4.0","licence_url":"https://creativecommons.org/licenses/by-sa/4.0/legalcode","attribution":"https://codewithpapers.app/attribution","modified":"archive material modified by Syntology; see the attribution page"},"url":"/paper/invertible-image-signal-processing","title":"Invertible Image Signal Processing","arxiv_id":"2103.15061","date":"2021-03-28","proceeding":"CVPR 2021 1","authors":["Yazhou Xing","Zian Qian","Qifeng Chen"],"abstract":"Unprocessed RAW data is a highly valuable image format for image editing and computer vision. However, since the file size of RAW data is huge, most users can only get access to processed and compressed sRGB images. To bridge this gap, we design an Invertible Image Signal Processing (InvISP) pipeline, which not only enables rendering visually appealing sRGB images but also allows recovering nearly perfect RAW data. Due to our framework's inherent reversibility, we can reconstruct realistic RAW data instead of synthesizing RAW data from sRGB images without any memory overhead. We also integrate a differentiable JPEG compression simulator that empowers our framework to reconstruct RAW data from JPEG images. Extensive quantitative and qualitative experiments on two DSLR demonstrate that our method obtains much higher quality in both rendered sRGB images and reconstructed RAW data than alternative methods.","url_abs":"https://arxiv.org/abs/2103.15061v2","url_pdf":"https://arxiv.org/pdf/2103.15061v2.pdf","source":{"archive":"pwc-archive (Hugging Face), CC BY-SA 4.0","snapshot":"2025-07-28","licence_url":"https://creativecommons.org/licenses/by-sa/4.0/legalcode","row_kind":"abstracts"},"code_links":[{"paper_slug":"invertible-image-signal-processing","repo_url":"https://github.com/yzxing87/Invertible-ISP","is_official":1,"mentioned_in_paper":0,"mentioned_in_github":1,"framework":"pytorch","reach":null}],"tasks":[],"methods":[],"datasets_introduced":[],"methods_introduced":[],"results":[],"syntology":{"atlas_url":"https://app.syntology.ai/?focus=2103.15061","mcp":{"get_harvested_code_for_paper":{"arxiv_id":"2103.15061"}},"developers":"https://syntology.ai/developers","read_at":"2026-09-24T18:15:14+00:00","read_at_is":"when the build read Syntology's graph, not when any sample ran","claim":"Per-sample execution status on synthesized fixtures; not a correctness claim about the paper. Samples come from repositories linked to the paper, official or community; repo_kind says which.","repos":[{"provenance":"external:paperswithcode_snapshot_2025-07-28","url":"https://github.com/yzxing87/Invertible-ISP","reach":null}],"summary":{"ran":3,"ran_draft_wrong":1,"unverified":2},"by_repo_kind":{"official":{"samples":6,"ran":4,"repositories":1}},"repo_kind_vocabulary":{"official":"The archive marks this repository official for the paper","named_in_paper":"The archive records that the paper mentions this repository; it is not marked official","listed":"In the archive's code links for this paper, not marked official and not recorded as mentioned in the paper","found_in_text":"Syntology found this repository in the paper's own text; whether it is the authors' implementation is not asserted","community":"Not in the archive's code links for this paper; a community repository Syntology harvested"},"n_pointer_only_for_licence":0,"samples":[{"code_sha256_prefix":"bd8fe4d81407950c","entry":"DenseBlock","repo":"yzxing87/Invertible-ISP","repo_kind":"official","path":"model/model.py","file_url":"https://github.com/yzxing87/Invertible-ISP/blob/HEAD/model/model.py","link_basis":"first_harvest_node","language":"python","status":"ran","verification_level":1,"contract_check":null,"metamorphic_tier":null,"behaviour_fingerprint":false,"licence":"MIT","inline_ok":true,"mcp_get_code":{"code_sha256":"bd8fe4d81407950c"}},{"code_sha256_prefix":"556edaf281c888db","entry":"InvBlock","repo":"yzxing87/Invertible-ISP","repo_kind":"official","path":"model/model.py","file_url":"https://github.com/yzxing87/Invertible-ISP/blob/HEAD/model/model.py","link_basis":"first_harvest_node","language":"python","status":"ran","verification_level":1,"contract_check":null,"metamorphic_tier":null,"behaviour_fingerprint":false,"licence":"MIT","inline_ok":true,"mcp_get_code":{"code_sha256":"556edaf281c888db"}},{"code_sha256_prefix":"e6b1592a851a4e6a","entry":"InvertibleConv1x1","repo":"yzxing87/Invertible-ISP","repo_kind":"official","path":"model/model.py","file_url":"https://github.com/yzxing87/Invertible-ISP/blob/HEAD/model/model.py","link_basis":"first_harvest_node","language":"python","status":"ran","verification_level":1,"contract_check":null,"metamorphic_tier":null,"behaviour_fingerprint":true,"licence":"MIT","inline_ok":true,"mcp_get_code":{"code_sha256":"e6b1592a851a4e6a"}},{"code_sha256_prefix":"6e4e60f0269cef68","entry":"subnet","repo":"yzxing87/Invertible-ISP","repo_kind":"official","path":"model/model.py","file_url":"https://github.com/yzxing87/Invertible-ISP/blob/HEAD/model/model.py","link_basis":"first_harvest_node","language":"python","status":"ran_draft_wrong","verification_level":1,"contract_check":"OUTPUT_MISDECLARED","metamorphic_tier":null,"behaviour_fingerprint":false,"licence":"MIT","inline_ok":true,"mcp_get_code":{"code_sha256":"6e4e60f0269cef68"}},{"code_sha256_prefix":"fda23ef78edc9d9f","entry":"InvISPNet","repo":"yzxing87/Invertible-ISP","repo_kind":"official","path":"model/model.py","file_url":"https://github.com/yzxing87/Invertible-ISP/blob/HEAD/model/model.py","link_basis":"first_harvest_node","language":"python","status":"unverified","verification_level":0,"contract_check":null,"metamorphic_tier":null,"behaviour_fingerprint":false,"licence":"MIT","inline_ok":true,"mcp_get_code":{"code_sha256":"fda23ef78edc9d9f"}},{"code_sha256_prefix":"6f1bb896f0c61c30","entry":"initialize_weights_xavier","repo":"yzxing87/Invertible-ISP","repo_kind":"official","path":"model/model.py","file_url":"https://github.com/yzxing87/Invertible-ISP/blob/HEAD/model/model.py","link_basis":"first_harvest_node","language":"python","status":"unverified","verification_level":0,"contract_check":null,"metamorphic_tier":null,"behaviour_fingerprint":false,"licence":"MIT","inline_ok":true,"mcp_get_code":{"code_sha256":"6f1bb896f0c61c30"}}]},"arxiv_metadata":null,"syntology_extracted_results":null}