About this app

This application is for looking closely at huge jpg-files more conveniently in original resolution through pre decoded-files.

These days, common smart phones can take pictures of huge size (e.g. panoramic photograph) ,most application just show it as a pixelated blur thing when it comes to the detail of a few pixels. It is hard to find proper apps to appreciate the high quality image as it is without cutting corners, especially the case when the detail is the most important above all. The most important purpose of this app is the zero-delay-time which taken between blur image to clear source image in the resolution of the highest. [Animation] is a practical demonstration of it.

If we take an example of Carina Nebular, ‘heic0707a’ which was release by ESA/Hubble. Because of it’s big size(29,566px by 14,321px; Wow 423,414,686 px ), most app wouldn’t respond. Some working apps, loading time is long and whenever you touch, zoom, scroll image, the latency time to transition from blur image to clear image is recognizable, sometimes endless.
The Fullsize heic0707a (501.4MB) can not be handled in this app either. Depending on the memory size of HW and version of Android , ‘Large JPEG’(198.5MB)version can be decoded to a 1.6GB file. (423,414,686 px ☓ 4Byte/px = 1,693,658,744Byte -my phone, Galaxy A8 (2018) RAM 3.9GB Internal Storage 24.73GB, took about 1 minute 44seconds to decode it.) If the image size goes to extream and bigger than this size, this app would show you a message of failure at the decoding stage. Using this app, ‘try and error method’ is the best way to go because this app can not guarantee anythig.

The purpose of this app is for the better appreciation and understaning of big pictures. A big picture contains more than the sum of the every part ,so if you separate them from the others, something important disappear. For example the front page of daily newspapers, panoramic picture, a map, the pictures of the Hubble Space Telescope, …

In the case of 4:25 (18MPx) 1,728px by10,816px panoramic picture, it takes up 75MB storage space. The map file before you go travel, which is made by copy-and-paste of satellite image or Internet map, is unbeatable in size and quality. When I take a picture(16:9 (6MPx) 3,264px by 1,836px) of newspaper page, it is decoded to a 24MB file. Being useful only for a few days, you can delete them and free space to be available to newer ones . You can back-up to external-SD for the later use with [Restore] function. ( The 1.6GB decoded-file would not be bacted up, [Back up] copys the 198.5MB jpg file for the recovery. )

If you use the [Animation] function, this app could be a easy presentation s/w, slides which is ment to show the whole picture .

 Note1: This app is installed into a folder of Internal Storage, a.k.a. Internal SD. As pre-decoded-files are created only in that folder, limitation of the fixed Internal-Storage capacity is the biggest problem in this app. Moving data files to external( portable& expandable) SD could be neceassary sometimes. [Backup/Recover]
 Note2: Progressive compressed jpg can not be supported in this app.
 Note3: This app can not handle too big jpg file.
 Note4: During zoom in and out, there is some boundary area where the image could be look blurred. Please have some patience to zoom in more to get out of that threshold zone.

New features

1.'Image-processing' function was added (main menu).
2.'User Manual' was updated.
3.Checking 'Too small file to decode.' was removed.
4.Long pictures bugs was fixed.

App Permissions

Allows an application to write to external storage.
Allows an application to read from external storage.