topic Re: How to display image without blurring pixels in AutoCAD Forum

How to display image without blurring pixels

n8nall — Mon, 14 Dec 2020 14:36:53 GMT

I have simply inserted an image to my AutoCAD file, but I need to be able to zoom in closely on individual pixels. However, AutoCAD automatically blurs the pixels to smooth things out. Can I disable this to get a more accurate reference?

This is how I want it to look

This is how it looks:

Re: How to display image without blurring pixels

pendean — Mon, 14 Dec 2020 14:57:06 GMT

First and foremost: pixels in pictures are not zoom-able. Ever. That's the nature of raster images since the dawn of computers.

How did you get the image in AUtoCAD?

model or paperspace?

and did you scale it or not?

Re: How to display image without blurring pixels

n8nall — Mon, 14 Dec 2020 15:00:59 GMT

the picture is inputted into the model space and it is scaled.

I don't expect to get additional information from a picture with a limited amount of pixels, but the blurring effect it does makes it look like things are different sizes than they actually are. In applications like Photoshop, I can just zoom in and see individual pixels; it doesn't blur/clean up anything automatically.

I'm just trying to trace an image with CAD lines if that helps.

Re: How to display image without blurring pixels

pendean — Mon, 14 Dec 2020 15:21:10 GMT

>>>...and it is scaled. ...<<<
That is a contributing problem: you are stretching those dots and making them blurry. no scaling at all may give you better results.

AutoCAD is not Photoshop: if you need Photoshop abilities, use that program (or use Illustrator for a mix of DWG/vector and Raster images), that's the better approach for quality production output.

HTH

Re: How to display image without blurring pixels

Anonymous — Tue, 15 Nov 2022 17:23:32 GMT

To actually answer the question:

In command line window enter command "imagequality" and choose "draft", although this mode is only useful when zoomed in so much that individual pixels are visible.

Re: How to display image without blurring pixels

david-terry — Fri, 17 Sep 2021 18:03:26 GMT

@Anonymous Thank you for actually answering the question. Your solution worked wonderfully. Much appreciated.

You know, instead of providing some random comment that has literally nothing to do with the original post. We use the programs we do for a reason. If I wanted or could use illustrator or photoshop I would. This is also a very simple question to explain, and it is very obvious that some sort of post processing is being applied in AutoCAD, and that this is not some kind of a fundamental limitation of AutoCAD or bitmap images. If every other program that can display an image can properly display a bitmap, I'm sure AutoCAD can to.

PS: And yes, these kinds of "I know more about what you're trying to do than you do" responses really do annoy me.

Re: How to display image without blurring pixels

jwhiteN5ZFM — Tue, 15 Nov 2022 17:17:55 GMT

Totally agree with that @david-terry! Thanks, @Anonymous. I wouldn't normally comment on, well, anything, but I'm going to this time because it took me so long to find this post, and solution, because there were no results for the following keywords which I feel are relevant, and probably what I'll search for again in 5 years next time I'm setting up AutoCAD from scratch on a new machine!

AutoCAD raster image resampling interpolation method, bilinear, bicubic, nearest neighbour, pixels, zoom!

Cue extremely helpful comments about exporting and backing-up custom workspace settings or whatever it is that professional cadspeople do.