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Cartesian Perceptual Compression

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835: 22: 872: 847: 180:, a United States-based online system for archiving academic journals, converted its online archives to CPC in 1997. The CPC files are used to reduce storage requirements for its online collection, but are temporarily converted on their servers to GIF for display, and to PDF for printing. JSTOR still scans to TIFF G4 and considers those files its preservation masters. 173:
Viewing and converting documents in the CPC format currently requires the download of proprietary software. Although viewing CPC documents is free, as is converting CPC images to other formats, conversion to CPC format requires a purchase.
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mode, and is restricted to bi-tonal images. The company which controls the patented format claims it is highly effective in the compression of text, black-and-white (halftone)
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International Press Telecommunications Council § Photo metadata
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Comparison of rivals to TIFF for Document Imaging purposes
776: 761: 617: 518: 503: 371: 209:Additional technical information about the format 924: 907: 240: 50:. Unsourced material may be challenged and 914: 900: 247: 233: 254: 114:Learn how and when to remove this message 925: 800:Exchangeable image file format (Exif) 228: 866: 48:adding citations to reliable sources 15: 13: 810:Extensible Metadata Platform (XMP) 63:"Cartesian Perceptual Compression" 14: 949: 200: 137:extension .cpc) is a proprietary 870: 845: 834: 833: 127:Cartesian Perceptual Compression 20: 215:Analysis of format by the LoC. 170:, and geographical plot maps. 1: 195: 886:. You can help Knowledge by 7: 183: 10: 954: 865: 828: 790: 732: 649: 626: 262: 219:RLG DigiNews Vol. 7 No. 2 938:Computer science stubs 933:Graphics file formats 499:PBM / PGM / PPM / PNM 256:Graphics file formats 207:The company's website 151:for archival scans. 44:improve this article 815:GIF § Metadata 213:Library of Congress 190:Image file formats 895: 894: 860: 859: 124: 123: 116: 98: 945: 916: 909: 902: 880:computer science 874: 867: 849: 837: 836: 249: 242: 235: 226: 225: 149:Document Imaging 119: 112: 108: 105: 99: 97: 56: 24: 16: 953: 952: 948: 947: 946: 944: 943: 942: 923: 922: 921: 920: 863: 861: 856: 824: 786: 728: 645: 622: 258: 253: 203: 198: 186: 120: 109: 103: 100: 57: 55: 41: 25: 12: 11: 5: 951: 941: 940: 935: 919: 918: 911: 904: 896: 893: 892: 875: 858: 857: 855: 854: 842: 829: 826: 825: 823: 822: 817: 812: 807: 802: 796: 794: 788: 787: 785: 784: 779: 774: 769: 764: 759: 754: 749: 744: 738: 736: 730: 729: 727: 726: 721: 716: 711: 706: 701: 696: 691: 686: 681: 676: 671: 666: 661: 655: 653: 647: 646: 644: 643: 638: 632: 630: 624: 623: 621: 620: 615: 610: 605: 600: 595: 590: 585: 584: 583: 578: 568: 563: 558: 557: 556: 546: 541: 536: 531: 526: 521: 516: 511: 506: 501: 496: 491: 486: 481: 476: 471: 466: 465: 464: 454: 449: 444: 439: 434: 429: 424: 419: 414: 409: 404: 399: 394: 389: 384: 379: 374: 369: 364: 359: 354: 349: 344: 339: 334: 329: 324: 319: 314: 309: 304: 299: 294: 289: 284: 279: 274: 268: 266: 260: 259: 252: 251: 244: 237: 229: 223: 222: 216: 210: 202: 201:External links 199: 197: 194: 193: 192: 185: 182: 122: 121: 28: 26: 19: 9: 6: 4: 3: 2: 950: 939: 936: 934: 931: 930: 928: 917: 912: 910: 905: 903: 898: 897: 891: 889: 885: 882:article is a 881: 876: 873: 869: 868: 864: 853: 852: 848: 843: 841: 840: 831: 830: 827: 821: 820:Steganography 818: 816: 813: 811: 808: 806: 803: 801: 798: 797: 795: 793: 789: 783: 780: 778: 775: 773: 770: 768: 765: 763: 760: 758: 755: 753: 750: 748: 745: 743: 740: 739: 737: 735: 731: 725: 722: 720: 717: 715: 712: 710: 707: 705: 702: 700: 697: 695: 692: 690: 687: 685: 682: 680: 677: 675: 672: 670: 667: 665: 662: 660: 657: 656: 654: 652: 648: 642: 639: 637: 634: 633: 631: 629: 625: 619: 616: 614: 611: 609: 606: 604: 601: 599: 596: 594: 591: 589: 586: 582: 579: 577: 574: 573: 572: 569: 567: 564: 562: 559: 555: 552: 551: 550: 547: 545: 542: 540: 537: 535: 532: 530: 527: 525: 522: 520: 517: 515: 512: 510: 507: 505: 502: 500: 497: 495: 492: 490: 487: 485: 482: 480: 477: 475: 472: 470: 467: 463: 460: 459: 458: 455: 453: 450: 448: 445: 443: 440: 438: 435: 433: 430: 428: 425: 423: 420: 418: 415: 413: 410: 408: 405: 403: 400: 398: 395: 393: 390: 388: 385: 383: 380: 378: 375: 373: 370: 368: 365: 363: 360: 358: 355: 353: 350: 348: 345: 343: 340: 338: 335: 333: 330: 328: 325: 323: 320: 318: 315: 313: 310: 308: 305: 303: 300: 298: 295: 293: 290: 288: 285: 283: 280: 278: 275: 273: 270: 269: 267: 265: 261: 257: 250: 245: 243: 238: 236: 231: 230: 227: 220: 217: 214: 211: 208: 205: 204: 191: 188: 187: 181: 179: 175: 171: 169: 165: 161: 157: 152: 150: 147: 143: 140: 136: 132: 129:(abbreviated 128: 118: 115: 107: 96: 93: 89: 86: 82: 79: 75: 72: 68: 65: –  64: 60: 59:Find sources: 53: 49: 45: 39: 38: 34: 29:This article 27: 23: 18: 17: 888:expanding it 877: 862: 844: 832: 321: 176: 172: 168:design plans 153: 130: 126: 125: 110: 101: 91: 84: 77: 70: 58: 42:Please help 30: 554:Logluv TIFF 164:photographs 142:file format 927:Categories 851:Comparison 196:References 104:April 2024 74:newspapers 588:UFO / UFP 524:PSD / PSB 437:JPEG 2000 397:ICO / CUR 158:, has no 31:does not 839:Category 792:Metadata 734:Compound 462:JPEG-HDR 184:See also 160:lossless 135:filename 581:TIFF/IT 576:TIFF/EP 457:JPEG XT 452:JPEG XS 447:JPEG XR 442:JPEG XL 432:JPEG-LS 154:CPC is 133:, with 88:scholar 52:removed 37:sources 689:Gerber 651:Vector 514:PICtor 264:Raster 146:raster 90:  83:  76:  69:  61:  878:This 757:MODCA 417:JBIG2 307:BSAVE 178:JSTOR 156:lossy 139:image 95:JSTOR 81:books 884:stub 782:XAML 767:PICT 747:DjVu 704:PGML 699:IGES 694:HVIF 684:EMF+ 636:CIFF 598:WebP 593:WBMP 571:TIFF 549:RGBE 539:QTVR 484:NRRD 479:MIFF 427:JPEG 412:JBIG 407:ILBM 392:ICNS 387:ICER 382:HEVC 377:HDRi 362:FLIF 357:FLIC 352:FITS 292:AVIF 282:APNG 277:ANIM 67:news 35:any 33:cite 777:SWF 762:PDF 752:EPS 742:CDF 724:Xar 719:WMF 714:VML 709:SVG 679:EMF 674:DXF 669:CGM 664:CDR 641:DNG 628:Raw 618:XWD 613:XPM 608:XCF 603:XBM 566:TGA 561:SGI 544:RAS 534:QOI 529:PSP 519:PNG 509:PGF 504:PCX 494:PAM 489:ORA 474:MNG 469:KRA 422:JNG 402:ICS 372:GIF 367:FPX 347:EXR 342:ECW 337:DPX 332:DDS 327:CPT 322:CPC 317:CIN 312:CAL 302:BPG 297:BMP 287:ART 272:ANI 131:CPC 46:by 929:: 772:PS 659:AI 915:e 908:t 901:v 890:. 248:e 241:t 234:v 117:) 111:( 106:) 102:( 92:· 85:· 78:· 71:· 54:. 40:.

Index


cite
sources
improve this article
adding citations to reliable sources
removed
"Cartesian Perceptual Compression"
news
newspapers
books
scholar
JSTOR
Learn how and when to remove this message
filename
image
file format
raster
Document Imaging
lossy
lossless
photographs
design plans
JSTOR
Image file formats
The company's website
Library of Congress
RLG DigiNews Vol. 7 No. 2
v
t
e

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