Rare Book Monthly

Articles - March - 2012 Issue

Converting image to text, mobile-style

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When you need to copy something down, you probably do just that. You grab a piece of paper or a notebook and you write it down, verbatim or shorthand. Today, many people are carrying handheld devices, smartphones, which are proving more and more useful and multifaceted as technology improves. Today we’ll be taking a look at OCR (optical character recognition) software built for smartphones that allows you to convert an image of text into actual editable text.

Five years ago the concept of taking a picture and running OCR software on one’s phone was inconceivable. Advancements in two smartphone features have made it possible now. The first aspect that needed upgrading was the camera. The original iPhone (which recently celebrated its fifth birthday) has a 2-megapixel camera that pales in comparison to today’s iPhone 4S, which boasts 8-megapixels and rivals the quality of consumer-level digital cameras. The second thing that now allows more powerful software is the development of faster mobile processor chips. Smartphones today are beginning to ship with quad-core processors, something computers only began doing in the last decade.

Today’s review covers two apps for Apple’s iOS, ABBYY Textgrabber + Translator and Ricoh Innovation’s Image to Text – OCR. Testing was done on an iPhone 4 and an iPhone 4S, with identical documents scanned. Textgrabber + Translator costs $0.99 while Image to Text – OCR is free.

These apps operate similarly in their functionality. Both provide a camera feature built-in as well as allowing the user to select an already existing image on the phone. While the apps’ cameras are convenient, I noticed right away that neither allows using the iPhone’s volume up button as a shutter-release. Only Apple’s own Camera app has that feature, and I’ve found that squeezing a tactile button produces better stability than pressing the screen. For this reason, I recommend taking whatever images you intend to OCR using Apple’s Camera app, and then loading them for OCR separately. This stability is of paramount importance when trying to convert an image to text because any blurriness or discrepancies in the image will lower accuracy of the recognition software. I also recommend taking more than one photo in quick succession as it increases your chances of getting a crystal-clear picture.    

Posted On: 2012-03-01 00:00
User Name: Heritage

Is there no such app for Androids?


Rare Book Monthly

  • <b>19th Century Shop:</b> Charles Darwin on sexuality and the transmission of hereditary characteristics: Autograph Letter Signed to Lawson Tait. Down, 17 January [1877].
    <b>19th Century Shop:</b> MILTON, JOHN. <i>Paradise Lost. A Poem written in ten books.</i> London: 1667. A very rare example with the contemporary binding untouched and with a 1667 title page.
    <b>19th Century Shop:</b> Hamilton secures the ratification of the Constitution: <i>The Debates and Proceedings of the Convention of the State of New-York, assembled at Poughkeespsie, on the 17th June, 1788.</i>
    <b>19th Century Shop:</b> The social contract “Man is born free, and everywhere he is in chains”: ROUSSEAU, JEAN-JACQUES. <i>Principes du Droit Politique [Du Contract Social]</i>. Amsterdam: Michel Rey, 1762
    <b>19th Century Shop:</b> “The first English textbook on geometrical land-measurement and surveying”: BENESE, RICHARD. <i>This Boke Sheweth the Maner of Measurynge All Maner of Lande…</i>
  • <b>Swann Auction Galleries Mar 8:<br>Early Printed, Medical, Scientific & Travel Books</b>
    <b>Swann Auction Galleries Mar 8:</b> Caius Julius Hyginus, <i>Poeticon Astronomicon,</i> first illustrated edition, Venice, 1482. $15,000 to $20,000.
    <b>Swann Auction Galleries Mar 8:</b> Giovanni Botero, <i>Le Relationi Universali... divise in Sette Parti</i>, Venice, 1618. $3,000 to $5,000.
    <b>Swann Auction Galleries Mar 8:</b> <i>L'Escole des Filles</i>, likely third edition of the first work of pornographic fiction in French, 1676. $8,000 to $12,000.
    <b>Swann Auction Galleries Mar 8:<br>Early Printed, Medical, Scientific & Travel Books</b>
    <b>Swann Auction Galleries Mar 8:</b> Illuminated Book of Hours in Latin on vellum, Flanders, early 16th century. $6,000 to $9,000.
    <b>Swann Auction Galleries Mar 8:</b> Johannes Regiomontanus, <i>Calendarium,</i> Venice, 1485. $8,000 to $12,000.
    <b>Swann Auction Galleries Mar 8:</b> Pedro de Medina, <i>Libro d[e] gra[n]dezas y cosas memorables de España,</i> Alcalá de Henares, 1566. $3,000 to $5,000.
    <b>Swann Auction Galleries Mar 8:<br>Early Printed, Medical, Scientific & Travel Books</b>
    <b>Swann Auction Galleries Mar 8:</b><br>Luis de Lucena, <i>Arte de Ajedres,</i> Salamanca, circa 1496-97. $10,000 to $15,000.
    <b>Swann Auction Galleries Mar 8:</b> Andrés Serrano, <i>Los Siete Principes de los Ángeles, válidos de Rey del Cielo,</i> Spain, 1707. $800 to $1,200.
    <b>Swann Auction Galleries Mar 8:</b> Johannes de Sacrobosco, <i>Sphaera mundi,</i> first illustrated edition, Venice, 1478. $15,000 to $20,000.
  • <b>Bonhams, Feb. 11:</b> A Rare 3-rotor German Enigma I Enciphering Machine. $70,000 to $90,000
    <b>Bonhams, Feb. 11:</b> Important collection of correspondence between Werner Heisenberg and Bruno Rossi. $40,000 to $60,000
    <b>Bonhams, Feb. 11:</b> Walt Whitman Autograph manuscript containing his thoughts on death. $20,000 to $30,000
    <b>Bonhams, Feb. 11:</b> David Roberts. <i>Holy Land</i>. Six volumes. 1842-1849. First edition. $15,000 to $25,000
    <b>Bonhams, Feb. 11:</b> Extensive collection of Ray Bradbury's primary works, most signed or inscribed. $15,000 to $20,000
    <b>Bonhams, Feb. 11:</b> Peter Force. Declaration of Independence. $12,000 to $18,000
    <b>Bonhams, Feb. 11:</b> Steinbeck. <i>Grapes of Wrath</i>. A fine copy of the first edition. $10,000 to $15,000
    <b>Bonhams, Feb. 11:</b> Lewis & Clark. <i>Travels to the Source of the Missouri River</i>... First English edition, extra-illustrated. 1814. $10,000 to 15,000
    <b>Bonhams, Feb. 11:</b> Manuscript document signed by Nuno de Guzman relating to Hernan Cortes, 1528. $8,000 to $12,000
    <b>Bonhams, Feb. 11:</b> “Nos los inquisidores..." The first book in English printed West of the Mississippi. [1787]. $5,000 to $8,000.

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