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>Bonhams: Exploration and Travel, Featuring Americana, Part I. September 25, 2018</b>
    <b>Bonhams, Sep. 25:</b> Shackleton, Ernest. <i>Aurora Australis.</i> Printed at the sign of 'The Penguins'; East Antarctica, 1908. $70,000 to $100,000
    <b>Bonhams, Sep. 25:</b> Shackleton, Ernest. <i>South Polar Times.</i> 1st edition, limited issue. from the library of Michael Barne. $20,000 to $30,000
    <b>Bonhams, Sep. 25:</b> General Washington's <i>Proceedings of a General Court Martial... of Major General Lee.</i> Philiadelphia, 1778. 100 copies printed for Congress. BOUND WITH: ...Court Martial... of St Clair and ...Schuyler. $25,000 to $35,000
    <b>Bonhams: Exploration and Travel, Featuring Americana, Part I. September 25, 2018</b>
    <b>Bonhams, Sep. 25:</b> <i>The Voice of the People.</i> Boston, 1754. Rare pamphlet on the Excise Tax. Nathaniel Sparhawk's copy. $4,000 to $6,000
    <b>Bonhams, Sep. 25:</b> Autograph Letter Signed ("S.L. Clemens"), offering extensive hard-earned advice on writing, 5 pp, 1881. $30,000 to $50,000
    <b>Bonhams, Sep. 25:</b> After Fra Egnazio Danti. <i>L'Ultime Parti not:e nel Indie Occid:ntli" [The last known parts of the Western Indies].</i> Painted Map of California, Western Mexico, and Japan. $70,000 to $100,000
    <b>Bonhams: Exploration and Travel, Featuring Americana, Part I. September 25, 2018</b>
    <b>Bonhams, Sep. 25:</b> Ptolemaeus, Claudius. <i>Geographie opus nouissima...</i> 1513. The most important edition of Ptolemy, containing the Admiral's Map. $250,000 to $350,000
    <b>Bonhams, Sep. 25:</b> De Arellano, Don Alonso. Manuscript, his <i>"Relación mui singular y circunstanciada... Capitán del Patax San Lucas,"</i> manuscript copy from the Sir Thomas Phillips collection. $50,000 to $80,000
    <b>Bonhams, Sep. 25:</b> Purchas, Samuel. <i>Purchas his Pilgrimes.</i> First edition. With John Simth's engraved map of Virginia. $70,000 to $100,000
    <b>Bonhams: Exploration and Travel, Featuring Americana, Part I. September 25, 2018</b>
    <b>Bonhams, Sep. 25:</b> Lewis, Meriwether. Contemporary manuscript true copy of his final power of attorney, 1809. $8,000 to $12,000
    <b>Bonhams, Sep. 25:</b> <i>A New Method of Macarony Making, as Practiced at Boston in North America.</i> Mezzotint. London, 1774. $5,000 to $7,000
    <b>Bonhams, Sep. 25:</b> <i>Scientific Base Ball Pitching: A Treatise on the Pitcher, Pitching, Origin and Philosophy of the Curve.</i> Chicago, 1897. $2,000 to $3,000
  • <b>Swann Auction Galleries Sep 27:</b> Franklin H. Brown, <i>State Sovereignty, National Union,</i> Chicago, 1860. $6,000 to $9,000.
    <b>Swann Auction Galleries Sep 27:</b> Thomas Paine, <i>The American Crisis,</i> Fishkill, NY, December 1776. $25,000 to $35,000.
    <b>Swann Auction Galleries Sep 27:</b><br>The Aitken Bible, Philadelphia, 1781. $20,000 to $30,000.
    <b>Swann Auction Galleries Sep 27:</b> Francisco Loubayssin de Lamarca, probable first edition of the first novel set in the Spanish New World, Paris, 1617. $15,000 to $25,000.
    <b>Swann Auction Galleries Sep 27:</b> Juan de la Anunciación, <i>Sermonario en lengua mexicana,</i> first edition, first book of sermons in Nahuatl, Mexico, 1577. $30,000 to $40,000.
    <b>Swann Auction Galleries Sep 27:</b> Maturino Gilberti, <i>Thesoro spiritual en lengua de Mechuacá,</i> first edition, Mexico, 1558. $15,000 to $25,000.
    <b>Swann Auction Galleries Sep 27:</b> Commission of William O. Stoddard as secretary to the president, signed by Lincoln, Washington, 1861. $7,000 to $10,000.
    <b>Swann Auction Galleries Sep 27:</b> <i>Clay and Frelinghuysen,</i> flag banner, circa 1844. $8,000 to $12,000.
    <b>Swann Auction Galleries Sep 27:</b> Daguerreotype of a man believed to be Frederick Granger Williams Smith, son of Joseph Smith, circa late 1850s. $10,000 to $15,000.
    <b>Swann Auction Galleries Sep 27:</b> John C. Wolfe, <i>Portrait of Abraham Lincoln,</i> oil on board in period wooden frame, circa 1860s. $12,000 to $18,000.
    <b>Swann Auction Galleries Sep 27:</b> Francis W. Winton, manuscript on pow-wows with indigenous Canadians, 1881. $15,000 to $25,000.
    <b>Swann Auction Galleries Sep 27:</b> Family letters from two young daguerreotype artists, 1826-79. $10,000 to $15,000.

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