300 dpi Hi Resolution Images for commercial use

[angular_detail5FC4]

The images that are generated using Firefly are stated as "can be used for commercial use" however the resolution and quality are very very low.  When will there be an option or when will the resolution of the images be Hi-Res 300 dpi?  I am surprised that Adobe is behind on this as MidJourney and Dall-E-2 are both doing this easily.  

[Monika Gause]

300 ppi says nothing about the quality of an image.

What's important is the number of pixels in it.

[Catherine34863218ezjo]

I am also having trouble with this issue. What dpi are the downloaded images? If I want to print the images I create don't I need 300dpi?

[Monika Gause]

You need a certain size in pixels.

The resolution is just metadata that can be easily adjusted in Photoshop or other image editors. 

[Paul23814623q3zi]

Hi Catherine.

Here is a video that may help.

https://www.loom.com/share/cb20b392bbe1424d9d694a494ebec0b9?sid=5877d9f6-7f7d-4b51-aa08-94bc6f6eea7e

Cheers

Paul

[Robert36268190ji1a]

I would say that more importantly, 300 dpi is what Amazon Books require for images in their books submitted for publishing.  Which is why I have the same question.  So, regardless of why or whether 300 dpi is important for one reason or another, many of us need 300 dpi merely because it is required at Amazon.  I suspect 300 dpi is required for publication elsewhere too because I have seen it asked at other places as well.

[rayek.elfin]

@Robert36268190ji1a  For printed books generally 300PPI multiplied by the printed required physical size would be what you need. 

What Amazon is telling its would-be authors/publishers here:

https://kdp.amazon.com/en_US/help/topic/G201857950#imgres

is (as I stated before) meaningless without knowing at what size the image(s) would be placed in a print layout.

At least here

https://kdp.amazon.com/en_US/help/topic/G202169030

they do mention that the size of the required printed image in inches should be divided by the number of pixels to calculate the PPI.

Typical paperbacks in the US are 6 by 9 inches. This translates to 1800px by 2700 px for colour and grayscale images.

A Firefly generated 3x4 image adds up to 1792px by 2304px. It comes up a bit short, but still acceptable for a full colour cover image. Anything 200PPi or lower is considered too low resolution, and it doesn't approach that figure by far: around 250PPI when stretched to fill the page cover and including bleed.

Still quite acceptable print quality.

Of course, we'd need at least twice or thrice that resolution for a large format book or magazine. Or twice that pixel resolution for an image that covers a spread. In that case I agree that Firefly will come up short.

Btw, if your target ouput platform is Kindle, there is no problem. Max resolution size for Kindle output (Fire HDX 8.9") is 1600px * 2560px.

Btw2 the rules change completely when the intention is to print pure black and white (1bit) images. In that case a minimum resolution of 600 up to 1200ppi is required at the required output dimensions. And it depends on the paper quality as well. (Amazon's paper is low grade. That's why it's so inexpensive to print there. That kinda paper can't deal with 1200ppi black and white imagery. 600ppi at required printed dimensions is probably the max it tolerates.)

In any case, whether Firefly provides a sufficiently high resolution output entirely depends on the desired print output size and target platform at Amazon. Merely stating "we need 300ppi" is meaningless. Provide more context, please.

[rayek.elfin]

Sigh. @angular_detail5FC4 @Catherine34863218ezjo @Robert36268190ji1a 

What Monika is trying to tell you all is that you should not worry about 300PPI or 300DPI. Don't get hung up on that particular value: PPI or DPI means absolute nothing without knowing at what size the image is to be printed (on paper) and whether the image is continuous tone (colour or grayscale) or pure black and white.

Basically you calculate the required resolution of a to be printed colour or grayscale image with the simple formula (width in inches * 300) by (height in inches * 300) = required pixels for width and height respectively.

So... If you require a "high resolution 300 DPI image" without stating the size at which you mean to print it, it means nothing. It's meaningless babble. Gobbledegook. Balderdash.

For example. A 1 inch (2.54 cm) square colour image printed at 300DPI requires a mere 300 by 300 pixels.

Firefly's square colour images are output at 2048px width and height. Enough for a 17cm printed image.

4x3 proportioned images are enough for 15.172 cm by 19.507cm (1792px by 2304px).

If those max print sizes prove insufficient for you, please share with us here what exact printed resolution you'd like to see supported. Because merely stating "it isn't producing sufficiently high resolution images at 300DPI" is twaddly twaddly fiddle-faddle blathering flapdoodle. Bosh even.

If you know what I mean 😜

[VSI.Creation]

Hi,

I also have this question with a more concrete example, I need a file of 4060px x 2900px in 300 DPI minimum for printing.
The number of pixels is important but for what I need the DPI too, below this resolution the file is refused.

[Dave Gustafson]

In future updates, Firefly supposedly will have a larger file size as an option. But for now, if you need something in a pinch try one of the many free upscalers online. I purchased Topaz Gigapixel AI, I give it a 5-star rating and yes it's very pricey, but I take this very seriously and the price was worth it.

So using your specs to achieve an image that will work: Divide your pixel dimensions by 300 =

4060 pixels = 13.53 inches

2900 pixels = 9.66 inches

So that is print ready @ 300 DPI at that SIZE no less. This is using Ray's formula. 

An 8 x 10 size would be: We times the size by 300 (DPI)

2400 pixels = 8 inches

3000 pixels = 10 inches

Printers go by a different set of specs, dots per inch and this is what trips most folks. The printers will tell you what SIZE they need and using the above formula you calculate how many pixels are needed to achieve 300 DPI.

One last example: A poster with a size of 27 x 40 inches. Starting with SIZE we time that by 300 to see how many pixels are needed to get 300 DPI.

Thus we get this, 8100 pixels x 12000 pixels are needed to achieve 300 DPI in a 27 x 40 inches format.

[CE_ProductionArts]

Put simply. When is Firefly going to offer a feature where you can choose the DPI at whatever image size Firefly outputs!! DPI does count! a 5x7 inch image at 72DPI is fine for web. That same 5x7 image would need to be 300DPI for print. Currently, Firefly only offers 72DPI images.

[Monika Gause]

Have you read the complete thread?