Rare Book Monthly

Articles - March - 2012 Issue

Converting image to text, mobile-style

Testtext

The test text

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>Bonhams, Oct. 23:</b> SMITH, CHRISTOPHER WEBB. 1793-1871. <i>Indian Ornithology.</i> [Patna, India]: 1828. $50,000 to $80,000.
    <b>Bonhams, Oct. 23:</b> DUPRÉ, LOUIS. 1789-1837. <i>Voyage à Athènes et à Constantinople, ou Collection de portraits, vues et costumes grecs et ottomans.</i> Paris: Dondey-Dupré, 1825. $60,000 to $90,000.
    <b>Bonhams, Oct. 23:</b> ADAMS, JOHN. Autograph Letter Signed ("J Adams"), [to Dr. Perkins?] while recovering from his small pox inoculation, [late-April, 1764]. $30,000 to $50,000.
    <b>Bonhams, Oct. 23:</b> AUSTEN, JANE. Autograph Letter Signed ("J. Austen"), to her sister Cassandra, 4 pp, "Thursday – after dinner," [September 16, 1813,] Henrietta St. $80,000 to $120,000.
    <b>Bonhams, Oct. 23:</b> AUDUBON, JOHN JAMES. 1785-1851. <i>The Birds of America, from Drawings Made in the United States and Their Territories.</i> New York & Philadelphia: J.J. Audubon & J.B. Chevalier, 1840-1844. $20,000 to $30,000.
    <b>Bonhams, Oct. 23:</b> DODWELL, EDWARD. 1767-1832. <i>Views in Greece.</i> London: Rodwell and Martin, 1821. $20,000 to $30,000.
    <b>Bonhams, Oct. 23:</b> JAMES, JESSE. Autograph Letter Signed ("Jesse W. James"), to Mr. Flood demanding Flood retract spurious accusations, 3 pp, June 5, 1875. $200,000 to $300,000.
  • <b>Swann Auction Galleries Sep 26:</b> Textile of the Great White Fleet, with portraits of Theodore Roosevelt, Rear Admiral Robley D. Evans & successor Charles Stillman Sperry, 1908. $3,000 to $4,000.
    <b>Swann Auction Galleries Sep 26:</b> William J. Stone, <i>Declaration of Independence,</i> Force printing, 1833. $15,000 to $25,000.
    <b>Swann Auction Galleries Sep 26:</b> Shugart family papers including documentation of the Underground Railroad, 63 items, 1838-81. $30,000 to $40,000.
    <b>Swann Auction Galleries Sep 26:</b> Records of the Dickinson & Shrewsbury salt works, over 2000 items, with extensive slave labor correspondence, legal records & receipts, bulk 1820-1865. $80,000 to $120,000.
    <b>Swann Auction Galleries Sep 26:</b> Gloria Steinem, typescript for her speech <i>Living the Revolution,</i> with related letters and documents, 1941-77. $5,000 to $7,500.
    <b>Swann Auction Galleries Sep 26:</b> <i>Liberty Triumphant or the Downfall of Oppression,</i> depicting the aftermath of the Boston Tea Party, c. 1774. $12,000 to $18,000.
    <b>Swann Auction Galleries Sep 26:</b> Juan Eusebio Nieremberg, <i>Historia naturae, maxime peregrinae, libris XVI distincta,</i> Antwerp, 1635. $6,000 to $9,000.
    <b>Swann Auction Galleries Sep 26:</b> Antonio de Mayorga, manuscript map of Mexico City, 1779. $6,000 to $9,000.
    <b>Swann Auction Galleries Sep 26:</b> Thomas L. McKenney & James Hall, <i>History of the Indian Tribes of North America,</i> first edition, 3 volumes, Philadelphia, 1842-44. $25,000 to $35,000.
    <b>Swann Auction Galleries Sep 26:</b> Samuel Walker, diary of the entire first cruise of the USS Kineo, a gunboat on the Mississippi, 1854-69. $10,000 to $15,000.
    <b>Swann Auction Galleries Sep 26:</b> Scrapbook on early Stanford football, with letters from Walter Camp, 1893-95 & 1931. $8,000 to $12,000.
  • <b>Lark Mason Associates, Aug 8-27:</b> Roberts, David. Twenty Lithographs of the Holy Land, 19th Century. $2,000 to $4,000.
    <b>Lark Mason Associates, Aug 8-27:</b> Declaration by the Reps. of the United Colonies of N.A. 1775. $8,000 to $12,000.
    <b>Lark Mason Associates, Aug 8-27:</b> Composer Jerome Kern personal Letters, Albums and Other. $15,000 to $25,000.
    <b>Lark Mason Associates, Aug 8-27:</b> Paine, Thomas. <i>Common Sense,</i> London 1776. $8,000 to $12,000.
    <b>Lark Mason Associates, Aug 8-27:</b> Stowe, Harriet Beecher. <i>Uncle Tom’s Cabin,</i> Cleveland 1852. $4,000 to $6,000.
    <b>Lark Mason Associates, Aug 8-27:</b> Hobbes, Thomas. <i>Leviathan,</i> 3rd edition, London 1651. $2,000 to $3,000.
    <b>Lark Mason Associates, Aug 8-27:</b> Anno Regni Georgii III. Intolerable Acts and other Bills, 1774. $15,000 to $20,000.
    <b>Lark Mason Associates, Aug 8-27:</b> Wilberforce, William. An Abstract of the Evidence, 5 Letters, and two books. $6,000 to $9,000.
    <b>Lark Mason Associates, Aug 8-27:</b> Nightingale, Florence. Notes on Nursing and Signed Letters, ca. 1860 $4,000 to $6,000.
    <b>Lark Mason Associates, Aug 8-27:</b> Tolstov, Leo. <i>War and Peace,</i> 5 volumes, 1886. $3,000 to $5,000.
    <b>Lark Mason Associates, Aug 8-27:</b> Dickinson, John. Letters from a Farmer in Pennsylvania, 1768. $1,500 to $2,500.
    <b>Lark Mason Associates, Aug 8-27:</b> Twain, Mark. <i>Tom Sawyer,</i> 1877 [and] <i>Huckleberry Finn,</i> 1885. $4,000 to $6,000.

Article Search

Archived Articles

Ask Questions