Hi everybody, I got THE SOLUTIONS! 

Take your png no background image,

upload it on http://www.picturetopeople.org/image_utilities/image_converter.html

Choose to convert it in png24bit or png 8bit.

The image will be saved under this format i.e. image.png24

Rename it back to image.png

Upload it to Vuforia and it will be accepted.

Hello,

As discussed in the following article: https://library.vuforia.com/articles/Training/Getting-Started-with-the-Vuforia-Target-Manager

• Image must be in one of the supported formats: PNG or JPEG
• Image must either be grayscale or RGB-24 bit. This means that 32-bit images with an alpha channel (RGB + Alpha) are not allowed.
• Image size does not exceed 2 MB

Thanks,

Vuforia Engine Support

What about I want to keep background transparent in PNG, not white?!

PNG file seems to be impossible to upload which makes zero sense!

Hello,

Apologies for the inconvenience. The general rule, as documented here, is the following:

"Target images for Image Targets, Multi-Targets and Cylinder Targets must be either 8 or 24 bit PNG or JPG files. JPG files must be RGB or greyscale. The maximum image file size is 2.25 MB."

@SleezyE I ran the "peach" image through the following tool: http://www.imageforensic.org and it reported the following:

PNG image data, 480 x 480, 8-bit/color RGBA, non-interlaced

I believe the nuance is in RGBA's support for the alpha channel. To test this, I did the following:

1. Opened file in MS Paint (not Paint 3D)
2. Saved file as .JPG
3. Uploaded to Target Manager

Moving the image format to JPEG removes the alpha channel, but leaves the background as white which I believe is what @fidozx is trying to do.

Thanks,

Vuforia Engine Support

I met same problem... Looking forward to any solution for picture with no background.

I'm having a similar issue. I've saved a file as a .png, I've saved it as 24bit so I don't know why it wont upload! Does it not allow you to upload an image target unless they have a background? It will work better for my project if I can have it without a fixed background.

I am using a mac for the first time. I got the same error as everyone in this post/thread. I could not find anywhere how to check the bit size of the image and still don't know how (the error message says the image needs to be 24 bits).

I was using the Mac screen capture to capture the image.

When saving the image I tried unchecking the alpha channel check box . The image uploaded! 

Hi,

I am also facing the same issue when i try to upload a QR code image. I tried both in jpg and png.

Thanks 

sreeraj

anuloo wrote:

I have tried everything from 8bit to 24 bit. followed all he instructions down to the letter. this s a joke i dot think it will ever allow to upload any png files , it only accepts jpg-s.

which is completely sucks. as you cant use any shapes accept rectangles and squares.

Would you be able to share your image that is failing so I can try it? You can PM it to me if you'd prefer not to share it publicly.

Thanks,

Vuforia Support

I have tried everything from 8bit to 24 bit. followed all he instructions down to the letter. this s a joke i dot think it will ever allow to upload any png files , it only accepts jpg-s.

which is completely sucks. as you cant use any shapes accept rectangles and squares.

eflores wrote:

Hello everybody! Recently I had the same problem.. I solved it, opening the image.png file with Paint in windows 7 then I just save as jpg file and thats work for me..

SHOW, SUCCESSFUL

but what if i need the file to be in png for background issues?

Hi Alessandro B

I am having issue uploading PNG 24 bit image to my target manager

Hers is the link of the image

https://www.dropbox.com/s/ai417618i9a4965/Card.png?dl=0

It is giving me error "Invalid file format.Only 8 bit gray scale or 24 bit RGB of file type JPG or PNG are allowed"

Please help ASAP

Thanks

Habib Ali

Hello everybody! Recently I had the same problem.. I solved it, opening the image.png file with Paint in windows 7 then I just save as jpg file and thats work for me..

The image needs to be in RGB 24-bit, or gray-scale 8-bit.

I'm having the same problem with my images. I'm editing them in Photoshop CS6 and i've been saving them as rgb 8 bit .....they won't upload

Ok, great.

Hi ,

I have changed the images properties like used the RGB , 8bit , JPG , 300dpi properties and uploaded the images . It have accepted the images which have the mentioned properties .

Ok, can you send me a PM with a link to one of the failing images ? 

Hi,

yes, I'm sure that I'm uploading the right images.. and I even tried to upload the OcclusionManagment Sample's images.. but still did not work

Hi alhammadi_am, 

in your case the message is self-explanatory:

8 bit gray scale or 24 bit RGB of file type JPG or PNG are allowed

any other format will not work.

I have the same issue.. I'm even uploading the images of occlusionManagement Sample and still getting "Invalid file format.Only 8 bit gray scale or 24 bit RGB of file type JPG or PNG are allowed". Please help ASAP!

Could you PM me a link to one of these images, so that I can have a look ?

Also, I understood it is about Device Databases (not Cloud), is it ?

Thanks for your reply AlessandroB . I have uploaded almost 10 to 15 Images before . But Even if I use the previous  Images ( Already uploaded into the Database ) same error is giving .

Hi, are you sure you did not change the image (for instance opening and resaving the image...) ?

Not sure why the same image has been accepted two days ago, but anyway, your image must be in one of the formats mentioned in the error message (JPG, PNG, grayscale or RGB24); a frequent issue is wfor instance with images that are in CMYK format, as opposed to RGB.