Help with the reference image canvas fiasco, How to resolve incorrect aspect ratio?

[BillGEGHV]

Hi All, 

WHY does importing a reference image alter the aspect ratio??????????????????????

See several bits of info in the internet this but it seems like it has never been resolved.  How has this been an issue since 2019 that I have read and not resolved?  The research Ive done tells me rotation of an image prior to coming in the Fusion can alter the aspect ratio and or the meta data screwing things up for image scaling. I cannot fathom why this would be an issue in a precision CAD program.  I’ve worked in dozen of CAD, 3D modeling, digital sculpting programs for over 25 years in every 3D display from organics to parametrics and have NEVER had issues with aspect ratio when importing reference images.  This is ridiculous.  I LOVE Fusion but why is a simple thing now turn into another project and issue to resolve!  This is LAME!

SORRY for the rant but this is really frustrating we should not have to be dealing with this!

Im working on something that must be 100% accurate in regards to the image scale I need to trust the image is perfect or its useless.  The image I’m bringing at 1st was rotated and scale was off, but then I brought it in unrotated and it is still scaled in the height, making the reference image useless. Yes I did calibrate the image to the exact X scale I need it to be.  I did figure out that I can scale the image in the canvas edit function in Y BUT it takes some random value to get it 100% perfect SO its still kind of a guessing game to know 100% sure its scaled correctly and in reality since the decimal places are probably multi digits to get it perfect its probably not! I just cant trust it.  The fact is you should not have to scale an image in any 1 dimension to get it right. 

SO, how do I resolve this and make sure the image is the perfect aspect ratio and to the correct scale?

Can we please add this issue to the development team to get it resolved?

[TheCADWhisperer]

@BillGEGHV 

Easy to fix.

Attach your image file here and I will create video of the process.

[BillGEGHV]

I did a bit more investigation on this and it looks like the actual image is the culprit.  Totally unexpected!   The image is a scanned object sitting on a flat bed scanner, and it looks like the ratio coming from the scanner is off.  If you want to do the video that would be great, so I can see what your doing when there is an issue.  I do need to check this once Im home and do another scan and see if the scanner settings is what is screwing this up. 

Here is the scan and the screenshot from Fusion of my model.  

BTW: This is not a real steel lower receiver, it's an air soft part.   

[BillGEGHV]

I was hoping you would post that video and enlighten me on this. Ive scaled the width perfectly with calibrate, it works really good. BUT  I have been working with that image and trying to get the height of the part/image 100% dead nuts accurate in size but I just dont see how you can scale the second dimension and get it perfect, it's close but, close ain't good enough.  WHY dose it use a scale factor instead of actual real-world dimensions? it reminds me af an organic mesh modeler, or digital sculpting program where absolute dimension might not matter all that much, its kind of useless. Unless I'm missing something here?   WHY doesn't the canvas edit function have a way to pick 2 points and scale in independently?  I mean it almost feels like they forgot about the development of this function and left some functionality out, LOL.  Hope you can help.  

Why is it if I try to scale the image in Y it scales in X, Does that have anything to do with the metadata and the original orientation of the image? 

I did another scan test and for some reason, my scanner is changing the vertical scaling. This makes no absolutely no sense. Why would it do this? Its a Epson V600. Im going to get in touch with the Epson,  but figured I would ask if you have any comments on this.  I used to use this workflow back when I was in the toy industry but that was a different scanner and years ago, and it always gave me the best possible image to model around VS taking pictures. Pictures always SKU the image from lens distortion but the scanner should not.   

[TheCADWhisperer]

@BillGEGHV 

When you open the image file in an image viewer/editor software (like simply MS Paint) does it appear correctly there?

[BillGEGHV]

I open it in Photoshop and its off by about .215 in the height, so yes its a scanner thing.  I put in a support ticket with Epson, Ill keep you posted on what they say if you want me to.  But I would still like to see what solution you have for absolute scaling of the image per my other post.  Thank you.