Photoshop Drawing to Background--It's Blurry.

[DongLie]

I made a drawing on Photoshop which I tried to use on my background. The drawing's resolution in PS is 3072 x 1728 and 200 ppi. My laptop resolution is 1536 x 864.

When I export my drawing (into a .jpeg) and set it as my background, it comes out with these blurry regions. I tried all background settings on my "Personalize" option. It's the same thing.

I doubled the resolution of my laptop screen for the drawing, and it's still blurry when fitted into the background. Idk, I'm a noob with handling files.

So what do I do?

[JJMack]

You do not understand resolution well.

Your  laptop display displays 1536x864 pixels and yes many documents refer to that a the display's resolution.

However It is not really it PPI resolution.  Your Display has some Physical size and its pixels are single size.

It has a Single DPI resolution and displays can not vary their pixel size.

It can not display your image at is print resolution and size.

Also an image sharpness is not only determined by the image DPI resolution.

Image quality is very dependent on the quality of the Image Pixels.

If you have the most expensive camera which captures a 100MP Image, and have the sharpest most expensive lens; if you do not focus that lens on the subject the Image captures will not be sharp at any resolution you print the image with.

You captured an out-of-focus image, the pixel quality you need for a sharp image is not there.

[DongLie]

Um... Maybe if there weren't so many typos there, I would just understand.

[JJMack]

Yes I can not type but I do know Photoshop and how computers and digital imaging works.

[JJMack]

You do not understand resolution well.  Your laptop display displays 1536x864 pixels and yes many documents and append refer to that as the display's resolution.  However, It is not really it PPI resolution.  Your Display has some Physical size and its pixels are single size.  It has a Single DPI resolution and display's can not vary their pixel size. Displays cannot display your image at is print resolution and size.  Also, an image sharpness is not only determined by the image DPI resolution.   Image quality is very dependant on the quality of the Image Pixels.   If you have the most expensive camera which captures a 100MP Image and have the sharpest most expensive lens.  If you do not focus that lens on the subject the Image captures will not be sharp at any resolution you print the image with. You captured and out of focus image the pixel quality you need for a sharp image is not there.

I fixed the typos I could find.

[DongLie]

Ok, but nothing is low quality about my PSD drawing. Literally nothing blurry, it's only blurry on the background. I don't know.

[JJMack]

Upload your PSD to a file sharing site and post a link to it. If all is sharp what is blurring your document. Somethig is causing a blur. How are your layers blended.  Is the way you blend layers together causing the blur.

[DongLie]

There's not any kind of blending that I'm aware of. I can't post it anywhere right now but I could tomorrow. It's supposed to be just a simple, almost flat background with not much details.

[PECourtejoie]

hello, a screen capture could do the job as well

[davescm · Accepted solution]

Hi

When you take an image at 3072x1728 and display it using 1536 x 864 pixels then some information, in this case 75%, has to be thrown away. The algorithm to do this varies by the application being used to display the image (Photoshop actually gives a choice of scaling algorithms).

The background image for your desktop is being scaled down by your operating system using an algorithm that results in softness.

So why not take control, prepare a copy of the image scaled in Photoshop to 1536x864. View it at 100% zoom where you can assess the sharpness and address it if required then Export that scaled image for use on your desktop.

Dave

[JJMack]

I agree with Dave.  You should crop your image to a 16:9 aspect ration for you displays aspect ratio then resize the crop with Photoshop to your display's 1536px x 864px size any Photoshop resampling method would more likely do a better job then windows scaling your image down in size.  I thought you were posting only areas you painted on were blurry. Not the whole image.

[PECourtejoie]

Ah, d'oh! your Windows background!!!

I thought that you meant your Photoshop background layer...