RectAce (High-Quality Scanner)6.0.0 - App Store

This application enables you to use your iPhone as a scanner. Works not only with documents, receipts, business cards, notebooks, catalogs and other paper-based media, but also with the likes of whiteboards, posters, and train schedules. Use this application to obtain high-quality images.

Upon importing images contained in your iPhone's Photo Album or those taken with your device's camera, this application automatically recognizes the frame (outline) in the pictures, renders them so that they appear to be viewed from the front, and even enhances their attractiveness through applying color correction. This enables a level of image quality reminiscent of something taken with a scanner.

* Price may change without prior notice.

【Features】

The following represent a sample of the features offered by this application.

(1) Frame recognition (Detection of rectangular fields)
This application goes beyond simply recognizing four corner points and simultaneously detects the degree of distortion (the barrel distortion unique to cameras). Additionally, the application captures multiple candidate frames, thereby offering enhanced work efficiency relative to cases in which only one frame can be obtained.

(2) Front-facing adjustment
Photos taken at a diagonal are adjusted to make them appear to have been taken from the front. Distortion correction can also be carried out using the degree of distortion obtained through the frame recognition feature mentioned in (1) above.

(3) Color correction
This feature enables fine images to be taken in color as well as in black-and-white. Images are processed to ensure that even small characters are vividly reproduced. Furthermore, should shadows be present in the background of a photo, the application uses a background color modification function to eliminate only the shadows while preserving any characters or graphics.

【Main Functions】

■Camera (Anti-camera shake measures)
-Function that takes multiple continuous shots and chooses the sharpest image (BSS:Best-Shot Selection function)
-“Takes photo when shaking stops” function

■Frame recognition
-Detection of rectangular fields
-Distortion recognition (Can be toggled)
-Function that obtains multiple frame candidates

■Geometric correction
-Front facing adjustment
-Distortion correction (Can be toggled)
-Edge smoothing function

■Color correction
-Function that obtains fine images.
-Brightness adjustment
-Background color modification (Function that removes shadows and restores colors that disappeared)
-Function that thickens up thin characters.

■Images
-Elimination of salt-and-pepper noise (Elimination of unwanted spotty phenomenon)
-Ability to cut out designated rectangular fields
-Slight cutting of image periphery (Used when contour lines remain on the image)
-Ability to designate horizontal-to-vertical ratio of image (Typically handled automatically with option to designate)

■Batch processing
- Function that shoots multiple pages continuously.
- Function that recognizes frames, makes photos face the front, and corrects colors collectively.

■SubFolders (in App)
-Creates SubFolders in a folder.
-Expands a folder.

■AirPrint
-Prints with one image in one page and 100% magnification.
-By purhasing Printer Extensions (In-App Purchase), you can use the functions of printer extensions.

■Sending
-Sending via email in JPEG or PDF format
-Ability to forward to Evernote, GoogleDrive, Dropbox and OneDrive as JPEG or PDF format
-Designating the maximum file size upon sending images

【Printer Extensions (In-App Purchase)】
Main functions are as follows:

・Prints with multiple images in one page.
・Specifies print-magnification.
・Sends print-images as JPEG or PDF
(To : Camera roll, Other Apps, Clouds)

※Printers need to support AirPrint.
※Clouds : Evernote, Dropbox, Google Drive, BOX, OneDrive.

Version History - Supports Retina High-Resolution Display. 6.0.0 04/22/2021 - bug fixed 5.7.4 02/01/2018 - bug fixed 5.7.3 12/21/2017 - Camera focus bug fixed. 5.7.2 10/26/2017 -bug fixed 5.7.0 10/14/2017 - Supports Dropbox API2.

- bug fixed. 5.6.0 06/19/2017 - Provides Printer Extensions (In-App Purchase)
Main functions are as follows:

・Prints with multiple images in one page.
・Specifies print-magnification.
・Sends print-images as JPEG or PDF
(To : Camera roll, Other Apps, Clouds)

※Printers need to support AirPrint.
※Clouds : Evernote, Dropbox, Google Drive, BOX, OneDrive
※Needs to purchase as In-App Purchase.

- Supports OneDrive. 5.5.0 01/26/2016 - Improved shadow removal function.
For shadow-removal, both automatic and manual processings are provided.

- Bug fixed. 5.4.0 01/16/2016 - bug fixed for Batch Processing in iOS9.

- [Open in...] is supported.

- Air Print is supported.

- BOX and iCloudDrive are supported.

- [Unshadow] (which eliminates shadows) is supported. However, the [unshadow] is OFF in default settigns. You can use [unshadow] under the followings steps below:

● Steps for using [unshadow]
(1) From the top screen, tap [settings] icon and set [Show unshadow button] to ON. Before settings, close the settigns-screen.

(2) In [Adjusted Image] screen, [unshadow] button is shown. Please tap the [unshadow] button to eliminate the shadows.

※ For [unshadow]
When shadows are darker or shadow-areas are wide etc., there are cases where the shadows are not eliminated.

In this case, please eliminate shadows by using 'Modify background color'.

Also, it takes long time to process shadow-elimination. 5.3.0 10/21/2015 - GoogleDrive is supported.

- Dropbox login bug fixed.

- Minor adjustments are made. 5.2.0 04/08/2015 - bug fixed.

* First, please select language. 5.0.1 02/10/2015 【For default language】
If Japanese is selected as default language, please tap "Settings" icon on the top screen and tap "Language" in the Settings. You can change to English. And if you change language, you need to restart RectAce. However, you don't need to reinstall RectAce.

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-Compatible with iOS8.

-Supports SubFolders. Folders in a folder can be created. 5.0.0 01/27/2015 ● Serial shooting (batch processing) can now be available.
→See Help in this app for basic operation procedures for batch processing.

● Changes default of JPEG image quality.
→The default JPEG image quality value for sending the image via e-mail or to cloud sources has been changed to "Auto (File size specified) / 0.80 MB." Therefore, image quality could be deteriorated when a large image or complicated image is sent. Image quality will remain the same with the traditional value; the file size could be larger. If you prefer the traditional setting, go to the "Settings" screen, move to "Attachment image size" and then to "JPEG quality," and select "0.750." 3.0.0 07/12/2013 ・Dropbox login using OAuth as authentication can now be available.

・bug fixed. 2.4.0 05/21/2013 bug fixed

Note : All passwords of Evernote-Accounts were reset by Evernote-Team on 02 Mar 2013. So, a new password needs to be set again. Please see Evernote web-site for detailed information. 2.3.1 04/06/2013 - New Evernote Login can now be available.

- bug fixed 2.3.0 12/21/2012 -Folder swap and image swap functions are now available. To swap, click "Sort" icon and select "Tap here to swap".

-bug fixed. 2.2.0 06/05/2012 -Function that count of parameter can be reduced is now provided, because there are many parameters. If you want to reduce the count, set "Show detailed parameters" on the settings-window to OFF.

-Function that merges multiple folders is now provided.

-Images in multiple folders can now be forwarded to cloud-service (Evernote, GoogleDocs, Dropbox) in one operation.

-bug fixed. 2.1.0 03/16/2012 ・Images can now be saved in this app.

・Multiple images can now be stored in a PDF file.

・Function that makes characters-brightness darker is now available. It is used when characters-brightness is lighter. It can be carried out from 'Process chars' on processings-window of adjustment-result-window. It can also be set from settings-window. 2.0.0 02/07/2012 - Now compatible with Dropbox and GoogleDocs.

- Notebook and tags can now be designated on Evernote.

- Images on cloud services such as Evernote, Dropbox and GoogleDocs can now be sent in either JPEG or PDF format.

- The maximum file size upon sending images via email attachments or cloud services such as Evernote, Dropbox and GoogleDocs can now be designated. Images are sent after calculating a compression ratio for those images that does not exceed the designated maximum file size.

- The precision of aspect ratio calculation has been improved. Calculations of aspect ratios can now be conducted with more precision even when taking photos from a diagonal angle.

- The icon has been changed to a scanner icon. 1.1.0 07/29/2011 1.0.0 04/21/2011