| Identity statement area | |
| Reference Type | Conference Paper (Conference Proceedings) |
| Site | sibgrapi.sid.inpe.br |
| Repository | sid.inpe.br/sibgrapi@80/2007/09.04.17.34 |
| Last Update | 2007:09.04.17.34.49 administrator |
| Metadata | sid.inpe.br/sibgrapi@80/2007/09.04.17.34.50 |
| Metadata Last Update | 2020:02.19.03.06.19 administrator |
| Citation Key | Queiroz:2007:ImReMa |
| Title | Improved Reversible Mapping from Color to Gray  |
| Format | Printed, On-line. |
| Year | 2007 |
| Access Date | 2021, Jan. 25 |
| Number of Files | 1 |
| Size | 1986 KiB |
| Context area | |
| Author | Queiroz, Ricardo L. de |
| Affiliation | Universidade de Brasilia |
| Editor | Falcão, Alexandre Xavier Lopes, Hélio Côrtes Vieira |
| Conference Name | Brazilian Symposium on Computer Graphics and Image Processing, 20 (SIBGRAPI) |
| Conference Location | Belo Horizonte |
| Date | Oct. 7-10, 2007 |
| Book Title | Proceedings |
| Publisher | IEEE Computer Society |
| Publisher City | Los Alamitos |
| Tertiary Type | Full Paper |
| History | 2008-07-17 14:09:44 :: queiroz@ieee.org -> administrator :: 2009-08-13 20:38:32 :: administrator -> banon :: 2010-08-28 20:02:30 :: banon -> administrator :: 2020-02-19 03:06:19 :: administrator -> :: 2007 |
| Content and structure area | |
| Is the master or a copy? | is the master |
| Content Stage | completed |
| Transferable | 1 |
| Content Type | External Contribution |
| Keywords | colro mapping, texturization. |
| Abstract | In the reversible conversion of color images to gray ones, colors are mapped to textures and from the textures the receiver can recover the colors, i.e. one may print a color image with a black and white printer and, at a later time, recover colors. Such a method was originally devised using the wavelet transform and replacing high-frequency subbands by subsampled chrominance planes. Here, we propose to improve the original method thorugh the use of a largely redundant representation of the chrominance, with multiple embedding into subbands of a general subband transform. Our results point to minimization of the variance of the error caused by noise when the chrominance is replicated into many subbands and not linearly combined. Derived noise bounds guide us on how many subbands to embed the chrominance. Experimental results were carried for multiple noise levels, models, transform sizes, and number of embedding subbands, demonstrating the theoretical analysis and the method's potential. . |
| source Directory Content | there are no files |
| agreement Directory Content | there are no files |
| Conditions of access and use area | |
| data URL | http://urlib.net/rep/sid.inpe.br/sibgrapi@80/2007/09.04.17.34 |
| zipped data URL | http://urlib.net/zip/sid.inpe.br/sibgrapi@80/2007/09.04.17.34 |
| Language | en |
| Target File | colortobw-subbands-sibgrapi.pdf |
| User Group | queiroz@ieee.org administrator |
| Visibility | shown |
| Allied materials area | |
| Mirror Repository | dpi.inpe.br/banon-pc2@80/2006/08.30.19.27 |
| Host Collection | sid.inpe.br/banon/2001/03.30.15.38 |
| Notes area | |
| Empty Fields | accessionnumber archivingpolicy archivist area callnumber copyholder copyright creatorhistory descriptionlevel dissemination documentstage doi e-mailaddress edition electronicmailaddress group holdercode isbn issn label lineage mark nextedition nexthigherunit notes numberofvolumes orcid organization pages parameterlist parentrepositories previousedition previouslowerunit progress project readergroup readpermission resumeid rightsholder secondarydate secondarykey secondarymark secondarytype serieseditor session shorttitle sponsor subject tertiarymark type url versiontype volume |