Prizmo and ZoomReader apps showed greater detection of basic formating, maintaining paragraph Enters or blank lines at the end sentences to show paragraphs and line spacing present in the original text. Provides ability to copy, Email, move/link Twitter, Facebook, EverNote, MessagesĬomments: There were minor differences between the OCR accuracy for character recognition on the trials performed using ZoomReader, TextGrabber + Translator and Prizmo apps.No options available for contrast of change of text size within app.Provides ability to copy, email, move/link to Dropbox, Evernote, CloudApp, MobileMe or translate text.Provides text to speech after OCR processing performed.Provides cropping, perspective, rotating image to edit image prior to scan.Image saved to Photos, text converted must be emailed or copied for later use.Provides contrast, highlight color and font size options in app.Provides voice feedback throughout the process.Formatting accuracy (% maintained from original): 0% OCR processed text was one block of text. Formatting accuracy (% maintained from original): 40%Ġ/15 Enters or paragraph returns were detected. Formatting accuracy (% maintained from original): 67%ĭetected 6/15 Enters or paragraph returns between sentences or paragraphs from the original text. The iPad 3 was used with TextGrabber + Translator and Prizmo apps and iPhone 4 was used with ZoomReader app.ĥ errors ( 4 character recognition errors, 1 spacing error resulting in 3 word errors) Character recognition accuracy: 272/275 words correct = 99% accuracyĤ errors (2 character errors, 2 spacing errors resulting in 3 word errors) Character recognition accuracy: 272/275 words correct = 99% accuracyĢ errors (1 character recognition error, 1 spacing error resulting in 2 word errors) Character recognition accuracy: 273/275 words correct = 99+% accuracyĭetected 10/15 Enters or paragraph returns between sentences or paragraphs in the text. ![]() A consistent method of taking pictures was used (camera button was pressed while centering the iDevice over the hard copy then released when best image was in focus to get the best still picture possible). No flash component was used when taking the picture of the hard copy text with any of the devices. ![]() Prizmo (iPhone and iPad) apps were used on an iPad 3.Ĭamera use : The iPad 3 and iPhone 4 camera was used in natural lighting with the hard copy document placed in the same location with same day lighting available within a 20 minute period of time (I find lighting to be a big factor with the use of the scanning apps). TextGrabber + Translator (iPhone and iPad) and ZoomReader on an iPhone4 (only available for iPhone) The document has some text with blue font which was bold 12 point type as headings. ![]() ![]() Material used: A clean, hard copy document with 275 words with 12 point Arial black and blue font on white paper with no images was consistently used to scan with each app. Here is what I found in this informal research comparison: So, I decided to do an informal comparison of the apps mentioned to determine the accuracy of the apps ability to perform OCR scans of images using with three apps typically mentioned or reviewed for individuals challenged with accessing text (e.g. What’s the difference in accuracy and features of ZoomReader, Prizmo and TextGrabber OCR scanning apps for clients with a print disability?Ī few great questions from comments of readers inquired about the difference between OCR scanning apps mentioned in a prior post that are used to convert images to text for individuals with disabilities.
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