sorry to ask. is this for the ipad or iphone? also will it work on the 3GS?
is there a link for the developer and also is this free or paid? cheers lew On 19 Mar 2012, at 19:07, Anne Robertson wrote: > Hello Paul, > > The Light Detector app is just called Light Detector and you just launch it > and it plays a tone which rises with the light level. > > > Here are the instructions for Prizmo that Esther posted a little while ago. > > Cheers, > > Anne > > > > One of the features that contributes to Prizmo's increased effectiveness for > visually impaired users is the ability to take pictures with speech control, > by saying, "Take Picture", which reduces the likelihood of a blurred image > due to moving the phone when you double or split tap a button to take a > picture. You turn this feature on in the Settings menu by double tapping the > "Settings" button in the top right corner of the main Prizmo screen. Flick > right to the "General Settings" button under the "Settings" heading and > double tap. On the "General Settings" screen, flick right past the "Capture" > heading and set the "Alignment Grid" to "Switch button, off", then set the > "Speech Control" to "Switch button, on". I believe both switches are turned > on by default, but it is several months since I configured Prizmo. I'm not > sure whether turning off the "Alignment Grid" is necessary, but you certainly > don't need it to be displayed, since you can't see it while using the camera. > Once you have checked that these settings are in place, double tap the > "Settings, back button" in the top left corner to return to the "Settings" > screen, then double tap the "Done" button in the top right corner to return > to the main Prizmo screen. > > The main Prizmo screen has a list of types of documents to scan and OCR, > followed by a "Documents" button at the bottom of the screen that are results > you want to store in the app. In general, you will choose to double tap > "Text" (the first listed entry). > > The app works in 3 stages, which are indicated by the 3 buttons at the bottom > of the the next ("Photo") screen: (1) Source (obtaining the image using the > Camera -- can also use previous images from your photo album taken outside > the app), (2) Image (options to apply corrections to image before OCR -- > generally requires vision to perform actions, such as cropping to only > include the part of the image that contains text or correct for distorted > pictures because you didn't hold the iPhone flat), and (3) OCR (perform the > OCR with an option to choose the language to improve the OCR), then display > the results for editing, copying, etc. or saving in the app's stored > "Documents". You can navigate through the app without ever using these > buttons, just by double tapping the "Next" button in the top right corner of > the screen to move through each stage, and that's probably the easiest way to > use the app when you get started, especially if you only work with documents > in English. However, if you want to OCR a document in a different language, > you can improve your results by double tapping the "OCR" button (third or > three at the bottom right corner of the screen) and then flicking left to the > language button (e.g., "English") in the row of option buttons for that > screen, and double tapping. You'll be able to double tap another language > from the list of 10 available languages. (Note that you will not hear > "selected" announced beside the currently selected language in the list, but > you can only exit the "Language" menu by either double tapping a new language > selection or by double tapping the "Cancel" button in the top right corner. > Once you have changed the language (e.g., to French) and returned to the > "Photo" screen with the OCR button set, you should hear the new language, > "French", announced if you flick left to that button.) Setting the OCR > language before applying the "next" button improves the recognition of words > with accented characters -- otherwise I may get a "6" for an "e" with acute > accent, and other such examples. > > Here's the sequence for the iPhone 4, assuming that you have configured the > "Settings" menu as outlined earlier. It is very helpful to use the $0.99 > "Light Detector" app to check lighting conditions and also get a sense of the > optimal centering and height of the iPhone above the page before you use > Prizmo. (You can hear when the "Light Detector" signal is loudest if you > move the phone up and down or left/right and forwards/back with respect to > the page. This only gives a rough sense of where to position the phone when > you use Prizmo, but if you can't hear any difference in signal with Light > Detector when you move the phone around over the page, chances are that > either the background light level is too low to take a good image, or you're > blocking the light source with part of your body. You should also use a > headset connected to the headphone jack, since as soon as the iPhone camera > is accessed in a mode that is capable of responding to your spoken "Take > Picture" command the volume of VoiceOver through the speaker will drop, and > not get restored until you exit the camera screen either by double tapping > the "Use" button in the bottom right corner of the screen or the "Retake" > button in the bottom left corner of the screen. > > 1) From the main Prizmo screen, double tap "Text" > 2) On the Photo screen, flick right to the "Camera" button that is the first > of the 3 "Get text from picture" source options, near the bottom of the > screen, and double tap > 3) On the iPhone 4 Camera screen (no heading), there are three buttons at the > top: one for the "Flash" at the top left and one for "Camera Chooser" at the > top right. In between is an unlabeled "Button" that toggles on and off the > speech control function when the switch for that option is turned on under > the "General Settings" submenu of the "Settings" menu. If the switch for the > speech control option is not turned on in "Settings", this unlabeled button > will not appear on the screen. If, when you enter the Camera screen, your > phone does not vibrate, and VoiceOver's volume through the speaker does not > immediately drop, then the ability to use speech control to take a picture by > saying "Take Picture" on this screen has not been toggled on, and you will > have to double tap that unlabeled button to the left of the "Camera Chooser" > button to activate this function. Once you toggle on the speech control > function, your iPhone should vibrate, and the volume of VoiceOver through the > speaker should immediately drop. I believe that the first time you access the > Camera screen, speech control is toggled off (i.e., you can do a two finger > flick down to "Read All" the controls on the screen and hear everything > announced through the speaker). If you double tap the unlabeled button at > the top of the screen to turn on voice control of the camera shutter, then > whenever you enter the Camera screen your speaker volume will automatically > be lowered, requiring use of headphones. Presumably this is to get a good > trigger when you say, "Take Picture". Your speaker volume will remain > lowered until you leave the Camera screen (either by double tapping the "Use" > button in the bottom right corner after taking a photo, or by double tapping > the "Cancel" button in the bottom left corner to leave the screen without > taking a picture), or until you > toggle the speech control feature off by double tapping the unlabeled button > at the top of the screen again. (Note, if you become very confident and > proficient in the layout of the camera screen, so you can double tap the > "Use" button in the bottom left corner without a VoiceOver prompt, you can > run this without headphones. Alternatively, if you're at home in a quiet > setting you may still be able to hear VoiceOver through the lowered speaker > volume and also work without headphones. Also, if you're fast at getting the > iPhone to the correct height and level before you hear the buzz, and then say > "Take Picture", you can work without headphones. But in general, be prepared > to use headphones when you use voice control for the camera shutter.) > 4) Revisiting step 3. Assuming you set your speech control on, and exited > the Camera screen (e.g. by double tapping the "Cancel" button in the bottom > left corner), you can start the process again, with your headphones > connected. After double tapping the "Text" button (Step 1) and before double > tapping the "Camera" button (Step 2), place your iPhone on the page you want > to OCR using the edges of the paper to align the sides of the device. Center > the iPhone so that the camera lens (top right corner as you normally hold the > device) is approximately in the center of the page. (If you use a case, make > sure that the back of the case does not block the camera lens). Sandy has > mentioned suggestions like lightly folding the page in half length-wise and > width-wise to guide positioning and aligning the iPhone, in the case of > practicing with a sheet of letter paper. Make sure that you flatten the > paper because failing to keep either the page or the iPhone flat when you > take the picture will cause some of the letters to show up as tildes; this is > typical if you scan a book page and haven't flattened the section near the > spine enough. > 5) Double tap or split tap the "Camera" button, then, using two hands to make > sure you keep the iPhone level, raise it steadily up from the page to a > height of about 7 to 9 inches. (Nine inches is roughly twice the length of > the iPhone.) You'll feel the iPhone vibrate, and then VoiceOver will > announce "auto-focused". At this point you can say "Take Picture" and hear > the shutter close. (You'll probably start by lifting the iPhone too slowly > to reach 7-9 inches before you feel the vibration and hear "auto focused". > Say "Take Picture" anyway -- your image is more likely to be in focus. The > actual distance you lift depends on the size of the page. Small billings > only require about 6 or 7 inches. I practice lifting and then check the > distance I've lifted an iPhone against the handspan of one hand, which for > me is 7 inches, but I have small hands. > 6) Double tap the "Use" button in the bottom right corner of the screen. > This is the last element on the screen, so you can also just use a four > finger tap on the bottom of the screen and then double tap. (I preferred the > four finger swipe down, but this is the current gesture for moving tot he end > of the screen.) > 7) On the next screen flick right the "Next" button in the top right corner > and double tap. You'll move to a screen labeled "Processing" > 8) The results of the OCR will show up in an "Edit" screen which will let you > review and edit your results. > 9) Double tap the "Next" button in the top right corner when done. You can > Save your results, or copy them, mail or upload them. Options such as copy or > email are listed as buttons along the bottom of the screen. Do a three > finger flick left to hear the second page of options, which include MobileMe, > DropBox, etc. > > -- > > -- > You received this message because you are subscribed to the Google Groups > "MacVisionaries" group. > To post to this group, send email to macvisionaries@googlegroups.com. > To unsubscribe from this group, send email to > macvisionaries+unsubscr...@googlegroups.com. > For more options, visit this group at > http://groups.google.com/group/macvisionaries?hl=en. > -- You received this message because you are subscribed to the Google Groups "MacVisionaries" group. To post to this group, send email to macvisionaries@googlegroups.com. To unsubscribe from this group, send email to macvisionaries+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/macvisionaries?hl=en.