Develop Reference

Why when loading image with Glide as ByteArray into an ImageView doesn't rotate it according to EXIF?

I am using Glide library on Android to load a JPG format image into an ImageView, first I convert it to a ByteArray and then I use the following code:
GlideApp.with(context)
.load(selectedImageByteArray)
.into(image_view)
However, when the selected image orientation EXIF data is equal to "Rotate 270 CW" the image is not rotated by Glide unless I use the following code:
GlideApp.with(context)
.load(selectedImagePath)
.into(image_view)
This way I pass the selected image Uri instead of a ByteArray, why does this happen?
I attach and example (even here in Stack is not rotated):

Because that interface takes a path and nothing else. Kind of annoying since depending on the api level it is not always available. In some of the newer versions of android it is not easy to get the actual path of the file.image
data for that
The short answer is that the data that interface uses is stored in the file, not in the image data itself. There are many stack overflow links about this:
SO

Can't share image from dataDirectory via SocialSharing-PhoneGap-Plugin

I have a Cordova android project and using SocialSharing-PhoneGap-Plugin to share images
I'm storing images in dataDirectory. But when sharing image, it won't shares!
window.plugins.socialsharing.share('', 'subject', window.cordova.file.dataDirectory + 'folder/image.jpg');
Share popup appears and I can select an app, subject will share but image won't!
If I share an image from www folder, it works fine.

I used share with image data method:
window.plugins.socialsharing.share(null, 'Android filename', 'data:image/png;base64,R0lGODlhDAAMALMBAP8AAP///wAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAACH5BAUKAAEALAAAAAAMAAwAQAQZMMhJK7iY4p3nlZ8XgmNlnibXdVqolmhcRQA7', null);
Note: passing a base64 file as 'data:' is not supported on Android 2.x
You can see here how to Get base64 image data

I'm adding files/ in the final path and it works for me:
window.cordova.file.dataDirectory + 'files/folder/image.jpg'

Android Universal Image Loader Custom Image Decoder with CMYK support

Background
We have just swapped to the UIL library, which seems fantastic. Unfortunately we have to support CMYK images (against our will) and have attempted to modify an existing ImageDecoder called BaseImageDecoder.
The code for this can be found here. http://pastebin.com/NqbSr0w3
We had an existing AsyncTask http://pastebin.com/5aq6QrRd that used an ImageMagick wrapper described in this SO post (Convert Image byte[] from CMYK to RGB?). This worked fine before in our setup.
The Problem
The current decoder fails to load the cached image from the file system and this results in a decoding error. We have looked through the source code and believe we are using the right functions. We also thought that adding our extra level of decoding at this point in the process was ideal, as the image may have been resized and stored on the file system.
File cachedImageFile = ImageLoader.getInstance().getDiscCache().get(decodingInfo.getImageUri());
if (!cachedImageFile.exists()) {
Log.v("App", "FILE DOES NOT EXIST");
return null;
}
The above lines always return that the file does not exist.
The Question
Are we incorrect to process our CMYK images at this point, and if not why can't we get the image from the cache on file system?

Google Drive Custom Thumbnail for Standard MIME Type

I have yet another pesky question for people who understand how Google Drive SDK works. On Android platform, I am creating my own custom thumbnails for JPEG image files ( thumbnail is a reduced JPG of the most important detail of the parent image ), The size is a bit non-standard - 384 x 128px, but well within limits stated in the documentation. So, the code goes like this:
// thumbnail
String myThumb = "test.tnl";
Thumbnail tn = new Thumbnail();
tn.setMimeType("image/jpeg");
tn.setImage(Base64.encodeBase64String(myThumb.getBytes()));
// define meta-data
File body = new File();
body.setTitle("test.jpg");
body.setDescription("bla bla");
body.setMimeType("image/jpeg");
body.setThumbnail(tn);
File gooFl = drvSvc.files()
.insert(body, new FileContent("image/jpeg", new java.io.File(test.jpg)))
.execute();
and executes flawlessly (there are more 'body' elements I don't list here) and everything works like a charm. But when I download the image, my thumbnail is gone, replaced by standard Google thumbnail - s220 type.
I did notice the documentation statement:
As with indexable text, Drive automatically generates thumbnails for many common file types. For shortcuts and other file types Drive can not render, you can provide a thumbnail image generated by your application.
Reading it ambiguously, I was hoping that by supplying my own thumbnail to a known MIME type, I will keep Google Drive from generating its standard one, but it probably is not the case. So the question remains. Is there a solution to my problem? Having custom thumbnails for standard "image/jpeg" MIME types? Or is there a work-around, perhaps another custom field I can stick some 10Kb of binary data in? I need the thumbnails in my Android viewer - another app.
Thank you, sean

Google Drive will only use custom thumbnails for non-standard MIME types, so you can't override the one for jpeg. Your app can use a custom file property to store and read proprietary data:
https://developers.google.com/drive/properties

Convert JPEG/PNG image to TIFF image format in android OS

I am developing an app in which I need the image in TIFF format. But in android you can convert your bitmap/image to only JPEG/PNG image.
Is there a good way to convert JPEG/PNG file to TIFF format on android?

Android Do Not Support java.awt.image.*
check this.
http://developer.android.com/reference/packages.html

I'm not sure that Android SDK supports Java Image I/O, but check out following question: Java API to convert JPEG to TIFF

Android does not support TIFF files.
You can get the Bitmap's raw pixel data array and convert it to TIFF manually using any of the links from the previous comment.

If you are willing to add some C++ to your project via the Android NDK, then libtiff should do what you want.

I've recently found this great library on Github by Beyka (which uses libtiff and others natively) that provides many utilities for handling, opening, and writing .tiff files.
An example of converting JPEG to TIFF:
TiffConverter.ConverterOptions options = new TiffConverter.ConverterOptions();
//Set to true if you want use java exception mechanism
options.throwExceptions = false;
//Available 128Mb for work
options.availableMemory = 128 * 1024 * 1024;
//compression scheme for tiff
options.compressionScheme = CompressionScheme.LZW;
//If true will create one more tiff directory, else file will be overwritten
options.appendTiff = false;
TiffConverter.convertToTiff("in.jpg", "out.tif", options, progressListener);