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>Swann Auction Galleries, Feb 21:</b> NASA archive with 351 photographs, silver & chromogenic prints, 1960-2002. $6,000 to $9,000.
    <b>Swann Auction Galleries, Feb 21:</b> Edward S. Curtis, suite of 18 cyanotypes, 1910-14. $25,000 to $35,000.
    <b>Swann Auction Galleries, Feb 21:</b> Edward S. Curtis, <i>Horse Capture, Atsina,</i> unique copper plate for <i>The North American Indian,</i> 1908. $60,000 to $90,000.
    <b>Swann Auction Galleries, Feb 21:</b> John Whipple, <i>Harriet Beecher Stowe,</i> salted print from a calotype negative, 1853. $10,000 to $15,000.
    <b>Swann Auction Galleries, Feb 21:</b> Lewis Carroll, <i>Xie Kitchen,</i> albumen print, circa 1872. $8,000 to $12,000.
    <b>Swann Auction Galleries, Feb 21:</b> Ansel Adams, <i>Taos Pueblo,</i> limited, signed first edition of the artist's first book, 12 silver bromide prints, 1930. $30,000 to $45,000.
    <b>Swann Auction Galleries, Feb 21:</b><br>JFK in his motorcade about 2 mins before his assassination, chromogenic print, 1963. $2,000 to $3,000.
    <b>Swann Auction Galleries, Feb 21:</b> Anton Guilio Bragaglia, 6 photomechanical postcards with facsimile signatures, 1911-13, printed 1932. $30,000 to $45,000.
    <b>Swann Auction Galleries, Feb 21:</b> Société Anonyme, Inc, group of 9 postcards, including 8 real photo postcards, 1920-30. $25,000 to $35,000.
  • <b>Bonhams, Mar 6:</b> Albert Einstein A remarkable letter on God in English, one of his most eloquent and quoted, 1 p, July 2, 1945. $100,000 to $150,000.
    <b>Bonhams, Mar 6:</b> Benjamin Lincoln's commission as Major General in the Continental Army, February 19th, 1777. $60,000 to $90,000.
    <b>Bonhams, Mar 6:</b> Broadside. A Poem Upon the Bloody Engagement That Was Fought on Bunker's-Hill. 1775. $15,000 to $25,000.
    <b>Bonhams, Mar 6:</b> Early, full printing of the Star-Spangled Banner in The Yankee, October 7, 1814. $8,000 to $12,000.
    <b>Bonhams, Mar 6:</b> Paul Revere. Engraving, “The Boston Massacre Perpetrated on March 5, 1770," in <i>Massachusett's Calendar 1772.</i> $8,000 to $12,000.
    <b>Bonhams, Mar 12:</b> Walt Whitman. <i>Leaves of Grass.</i> First edition, first issue, SIGNED in block letters by Whitman. 1855. $200,000 to $300,000
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    <b>Bonhams, Mar 11:</b> VESALIUS, ANDREAS. 1514-1564. <i>De humani corporis fabrica libri septem.</i> Basel: Johannes Oporinus, June 1543. $300,000 to $500,000
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    <b>Christie’s Paris, 20 Feb:</b> MIOMANDRE – BARBIER. <i>Dessins sur les danses de Vaslav Nijinsky.</i> Paris. 1913. $23,000 to $34,000
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    <b>Christie’s Paris, 20 Feb:</b> EDWARDS. <i> <br>A Natural History of Uncommon Birds…</i> London : Printed for the Author. 1743-1764. $35,000 to $46,000
    <b>Christie’s Paris, 20 Feb:</b> VESALIUS. <i><br> De Humane Corporis Fabrica libri septem...</i> Basle : J. Oporinus. 1555. $58,000 to $80,000
  • <b>Morton Subastas on Bidsquare:</b><br>Die Französische Expedition gegen Mexico /Beilagen zum Beiheft des Militair - Wochenblattes
    <b>Morton Subastas on Bidsquare:</b><br>The Architecture Of M. Vitruvius Pollio. London, 1791.
    <b>Morton Subastas on Bidsquare:</b> Estatuto Provisional del Imperio Mexicano. México: Imprenta de Andrade y Escalante, 1865.
    <b>Morton Subastas on Bidsquare:</b> Historia de Méjico... México, 1849 - 1852.
    <b>Morton Subastas on Bidsquare:</b> Juárez, Benito - Ogazón, Pedro. Legajos de Bandos del Estado de Guadalajara, 1860-1863.
    <b>Morton Subastas on Bidsquare:</b> Sigüenza y Góngora, Carlos. Mapa de las Aguas que por el Círculo de 90 Leguas Vienen a la Laguna de Tescuco... Méx, 1748.
    <b>Morton Subastas on Bidsquare:</b> Cruces y Campa / Aubert / Valleto. Pareja Imperial, Fusilamiento de Maximiliano, Tipos Mexicanos... ca,1875.

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