Image
EAN-139780811862288   EAN-13 barcode 9780811862288
Product NameThe Printmaking Bible: The Complete Guide To Materials And Techniques
LanguageEnglish
CategoryBook / Magazine / Publication
Short DescriptionHeight:1.49 inches / Length:10.56 inches / Weight:3.95 pounds / Width:9.28 inches
Amazon.comA Buy on Amazon ~ 0811862283
SKUACOUK_BOOK_NEW_0811862283
Price New26.09 US Dollars    (curriencies)
Price Used18.94 US Dollars    (curriencies)
Width1.5 inches    (convert)
Height10.75 inches    (convert)
Length9.5 inches    (convert)
Weight63.2 ounces    (convert)
AuthorAnn D'arcy Hughes, Hebe Vernon-Morris
Page Count416
BindingHardcover
Published09/01/2008
FeaturesUsed Book in Good Condition
Long DescriptionPerennially popular, printmaking is enjoying a contemporary resurgencebut no comprehensive up-to-date manual on the subject exists. At over 400 pages and packed with 1,000 full-color photos and illustrations, The Printmaking Bible is the definitive resource to the ins-and-outs of every variety of serious printmaking technique practiced today.In-depth instructions are accompanied by profiles that show how working artists create their prints. Historical information, troubleshooting tips, and an extensive resource section provide more invaluable tools. Perfect for students, artists, print aficionados, and collectors, this is truly the ultimate volume for anyone involved in this creative and influential art form.
Similar Items9780746025277: Print Workshop: Hand-Printing Techniques And Truly Original Projects
9780713663969: Collagraphs and Mixed-Media Printmaking (Printmaking Handbooks)
9780500286616: Intaglio: Acrylic-Resist Etching, Collagraphy, Engraving, Drypoint, Mezzotint
9780486203089: Linoleum Block Printing (Dover Craft Books)
9780307586544: Print Workshop: Hand-Printing Techniques And Truly Original Projects
9780240521343: Creative Photoshop Cs4: Digital Illustration And Art Techniques
9780237447649: Push Print: 30+ Artists Explore The Boundaries Of Printmaking (Push Series)
9780205664535: Printmaking: A Complete Guide To Materials & Processes
9780029273722: The Complete Printmaker: Techniques, Traditions, Innovations
0651032041396: Speedball Baren For Block Printing
View 18 more similar items
Created11-20-2012 9:11:49am
Modified10-07-2017 2:15:22am
MD528b23e52ae627dacd6ee2599fdc35362
SHA2569ffba637c1783c201bb38607d549f3238a625d0a5985db175a8c49234c6b97a0
Search Googleby EAN or by Title
Query Time0.0236361

Article of interest

The interleave symbology stores digits in 2 sets of 5 stripes alternating black and white. Each set encodes a digit and these digits are interleaved together. One digit is made from the black stripes and one from the white stripes. Thus the name... Interleave 2 of 5.

Interleave 2 of 5 barcode

Each stripe in the symbol is either black or white and each of those can be narrow or wide. A wide stripe is 2 or 3 times as thick as a narrow stripe. This ratio must be consistant throughout the symbol. This means if your wide stripes start out 2 times as wide as a narrow, they must always be 2 times as wide throughout the entire symbol. You can't have some wide stripes 2 times and others 3 times as wide as a narrow stripe.

Each wide stripe has a value based on its position. The sum of these values determines which digit is represented. Every number is made up of 2 wide and 3 narrow stripes so the digit zero has a mnemonic value of 11 (eleven). This seems odd until you look at the chart below. You will see that to have a value of zero would otherwise require a single wide stripe and this would be a bigger problem than switching a mnemonic value of 11 into the digit 0 (zero).

Weight 1 2 4 7 0 Mnemonic
Digit black or white width (using weight)
0 n n W W n 4+7 (force 0)
1 W n n n W 1+0
2 n W n n W 2+0
3 W W n n n 1+2
4 n n W n W 4+0
5 W n W n n 1+4
6 n W W n n 2+4
7 n n n W W 7+0
8 W n n W n 1+7
9 n W n W n 2+7

Interleave 2 of 5 can only encode even numbers of digits. In many cases, the last digit is used as the check digit and this is calculated in the same way that UPC or EAN check digits are calculated. Often, this final digit is not displayed under the barcode because it is not part of the original number. In these case where the check digit is part of the encoded number, there are an ODD number of usable digits plus the check digit. When a check digit is not used, all of the digits are significant. There is nothing in the barcode to identify if the last digit is being used as a check digit or not. You must know this based on your application. In the event you need to encode an odd number of digits without the check digit (or an even number plus the check digit) a leading zero is added to the number to cause the end result to be an even number of digits total. The barcode also starts with a start marker made up of 4 narrow lines (black white black white) and stop mark is always located at the end also which is one wide stripe and two narrow stripes (black white black).

In our example image below, the start and stop marks are identified in yellow. The digits pairs are identified by the blue and green stripes. We are using a check digit in our example and although it doesn't show in the actual barcode (shown above), we have marked it in red in the sample below so you can see where it is being calculated in. For the example, the check digit works out to be the number 5.

Interleave 2 of 5 is prone to have partial scans. If the scanner is allowed to slip off the top or bottom of the barcode, trailing digits could be missed and the scanner could think that it has done its job. There are a couple solutions for this problem.

  1. Use a check digit as we have done in our examples. The application that makes use of the scanned numbers would also calculate the check digit and if it doesn't match what is expected the entire number is discarded. Using our example 1, 2, 3 ... 8, 9 give us a check digit of 5. So if only the first 5 digits scan properly, the program would use 1, 2, 3 and 4 to calculate a check digit which should be 8. Because the 5th digit of our example is 5 not 8 we know we didn't get the entire number so we discard it all.
  2. You could always use a fixed number of digits and left pad with zero. Then you application could check the length of the entire number including leading zeros and if it isn't what you are expecting, again you discard the entire number.
  3. Lastly would be to use guide bars on the top and bottom of the barcode. The guide bars must touch the top and bottom of each stripe and run straight accross in the scanning direction. These bars must also be at least 3 times wider than a narrow bar to make sure they aren't mistaken for an actual bar. If the scanner slips off the top or bottom of the symbol, these bars prevent a valid scan. There is an example shown below.

If you are interested in creating your own free Interleave 2 of 5 barcodes, you can visit our barcode page and make them and save them for your use.

Close

Search

Close

Share

Close

Dialog