I have some photos that were uploaded by a user who complained that the vertical photos were changed to landscape orientation when they were resized. Indeed, that was the case and in an effort to just move things along I reoriented the photos and uploaded in place. That had no effect when the pictures were viewed inside of a webpage though!
To make as simple a test as possible I created a bare bones web page with no CSS and a single IMG element with no attributes other than src. That continues to show the photo in landscape mode. Copy the photo's URL and paste into another tab and the photo shows in vertical mode. Download the file and open in Windows and it shows in vertical mode.
http://www.texashiking.com/test/PhotoOrientation.htm
The files are being stored on Azure BLOB storage.
I've duplicated this with Chrome version 56, Edge version 38 and Internet Explorer 11.
What could be causing this?
Your image has embedded exif orientation data which is presumably being ignored when rendering the page. See this answer for a bit more detail.
Basically, the camera you took the image with stored it in landscape, but stored some metadata with it saying that the image needs to be rotated 270°. The browser is apparently ignoring this tag when rendering it in the webpage, but not when you access the image directly.
Related
I am working on a web app that allows users to upload files to our CDN network, and then displays the images on the web app. However, I noticed something weird when uploading images through iOS (Safari) and possibly other browsers too.
When the highest resolution image is selected, the image is uploaded in its correct dimensions and shape.
However, when a lower resolution is selected, the uploaded image ends up being rotated on upload. I am not sure, if this happens with the CDN, or somewhere with the iOS file select feature, but its weird, since it works fine with the "Actual size" image.
You can see images below, to re-produce the error.
Pay attention the image shape, and file size. As "Actual size" the file size is 3.5MB!
Now, after we click on "Choose image size", following appears. I will choose "Medium".
After, you will see the file size is just 164KB. Reduction of -95.31%.
Then, pay attention to the shape, after the image is uploaded. You will see it is different rotation.
Does anyone have any clue as to why this happens? I am not sure if this has anything to do with the CDN I am using, because as I said before, when the "Actual size" image is selected, the uploaded image is perfectly fine. Only when size is changed through iOS "File selector" it changes rotation.
Also, another concern I have, is that these high resolution images are not necessary for my application. Sometimes we are talking +8MB for images, due to their high resolution and dimensions. Does anyone know if it's somehow possible to specify the image size for uploads on iOS/Android as default - so the user does not have to do anything? That would be ideal.
The images generated during choosing by iOS are missing the data for Orientation in the EXIF data for the image. That's why the image is correct when you upload the actual image, it seems oriented properly, but isn't right when it is a different size. You can check that by uploading the original and different sizes at https://exifinfo.org/. You'll see the different Orientation data in the EXIF section.
Since this is an iOS Safari specific feature, you can't rely on being able to choose multiple sizes of images that are being uploaded. A more reliable, cross-platform solution would be to resize the image yourself using a Canvas. This will however still probably require the user to upload the full size image, then you would have to process it on the canvas and upload it to your API.
I have a website where I also run a blog at http://climatecanchange.com/blog/ and the blogs are stored in a mysql database and each is matched to a unique image in one folder. I use php to get the image filename and other data to display all the blogs on my page.
For blog #2, my image is not showing on any iOS device (Chrome and Safari) though it can be seen on computers and Google Pixel too.
The link is http://climatecanchange.com/blog/blogs.php?id=2. When I open the image in a new tab it just shows white space. But, when I try to save it (on Chrome), it saves the actual image to my camera roll.
Can someone please help me with this? Why is there a problem with displaying that specific image?
The image format is Web/P which appears not to be supported in Safari right now
https://caniuse.com/#feat=webp
The company I work for stores some of their product images in Google cloud storage, and I've been able to fetch the images however when putting the img tags onto a page, they appear to be in the wrong orientation i.e landscape instead of portrait (no issues with images taken in landscape mode).
When viewing the image in a new tab however they appear correctly!
Is there a reason why this may be? Suggestions are appreciated.
I have tried putting the img on a blank page without an anchor wrapping it to see if that made a difference and it did not.
I'm guessing the OP is having problems due to EXIF data. If the original images contain EXIF data indicating that they should be rotated, special measures must be taken to get that data interpreted by a web browser when displaying a page. It is discussed here:
Is there a way to tell browsers to honor the jpeg exif orientation?
If the the solutions provided for exif orientation are not acceptable, the OP will have to preprocess the images to rotate them to proper orientation and save them that way on the serverside. Then the correctly rotated images can be delivered on web page.
I've captured a photo from in apple iphone 5s.
Dimension of the image is 960x1280.
Horizontal and vertical resolution is 72 dpi, Bit depth 24.
When I show the image in the img tag, the image is automatically rotated from portrait to horizontal.
But when I see the actual image, but the image is in computer in portrait mode only.
I don't know where is the issue.
I've opened in the ms paint to. I didn't get the issue.
I really confused in this. I've opened the image(which is in portrait mode) in ms paint and saved again in the same portrait mode itself. Now I've showed in the img tag, now the image is showing correctly in portrait mode itself in img tag. No issue has occurred. Working perfectly. Why the ios image is dynamically changing from portrait to horizontal?. I've checked with [http://imgur.com/ ]. The same issue has occurred in this application too.
How to resolve this?
Sometimes when you take a photo with an iPhone it embeds orientation information in the Exif metadata. Some applications understand this, some don't (web browsers don't), so you see different results.
Saving in MS Paint or, for example, "Save for Web" in Photoshop saves the image in the correct orientation, and strips the Exif data. You can also manually rotate the image on your phone, which will actually change the pixels, rather than just the Exif data.
If you look at this page, you will see that the right two images are sideways:
http://www.disneypinplace.com/beta/pin.php?id=PD78685
But when you click on them, they appear correctly in full screen view, vertically. I can't see anything wrong in my HTML img code that could cause this.
Can anyone tell me why this is happening? These photos were taken with an iPhone 5 by the way.
This is a particular problem with how the iPhone exports images. Seem this link for a similar situation.
Computers/browsers and iPhone software interpret the camera metadata (details about image, including portrait/landscape) differently thus causing the difference in rendering.
I was able to download the far right image in Pixelmator/Photoshop and save it as a jpg again, making sure it was portrait. This made it so the browser properly rendered the image and did not rotate it 90 degrees.
Were these pictures taken sideways, by any chance? Have you tried editing and "exporting for web" from Photoshop, for example?
Maybe the problem is on the image EXIF (as in you only see the image correctly because the browser reads the EXIF info and rotate it on screen). Exporting it will most likely remove that info from the image file and it might make it correct.
I spent an hour with this that I'll never get back. :)
The Problem
I took the picture on my Samsung GALAXY Tab PRO 8.4. It rendered SIDEWAYS in an Android Emulator as well as in FireFox 42.0.
The Fix
I edited the picture in IrfanView.
I went to Properties_Settings -> JPG_PCD_GIF ->
UNCHECK "Auto-rotate Image according to EXIF info (if available)"
It now renders OK in FireFox. I haven't checked the emulator yet.