[josephciotti]

Well being new to the industry I am going through a lot of trial and error... I have made a couple of my first designs and come to find out they are raster images and wayyyyy to small for the format that it needs to be in. Is there any possible way to resize the images without losing any quality?

 

[Celtic]

No.
With raster you can reduce it's size, but with enlarging it, you're going to lose quality.
The only difference might be if you created it in 600 dpi or higher and you're reducing a little.
Think of it as part of your learning curve.
Keep at it

 

[calhtech]

Well being new to the industry I am going through a lot of trial and error... I have made a couple of my first designs and come to find out they are raster images and wayyyyy to small for the format that it needs to be in. Is there any possible way to resize the images without losing any quality?

I have had some luck at printing the low res designs and then scanning them at high resolutions. There are not many options at this point.

CalhTech>

 

[Mr Jo]

You could use one of the program call ( onone perfect resize ) it will reup your image into any size with out loseing any quality

 

[kimura-mma]

As Denise said, it's part of your learning curve. Just re-create the design at 300 dpi at final size.

 

[josephciotti]

thanks for all the advice and support! very helpful

 

[KevinTSM]

If it's a JPEG i shouldn't really be enlarged by more than 10% ( if you have to at all ).
Have you thought about using vector magic, some raster images come up ok and they can be fine tuned by then finishing the job with incscape.
Of course that is if you can't re draw the image.

 

[UltraSeps]

Well, to a certain extent it all depends on the physical dimensions and overall quality of the original raster image. For example, if the original is 72 dpi but is say, 10" and of good quality, upsampling using some of the commercial tools available might provide an image that can be worked with. The key word there is "might".

Noteworthy to point out is that Photoshop CC has a newly re-engineered upsampling engine for low resolution images and is something worth looking into. Although it wont convert that matchbook size jpeg into award winning art, its an improvement over past versions.

 

[TeesLab]

You can't enlarge raster image perfectly but you can trick it a little bit.

For an example:
You have an image with 10x10cm 72 dpi.

1. Print your image with high quality printer & paper.
2. Scan your image in high dpi (e.g. 300dpi).
3. Resize your image in Photoshop (image > image size > uncheck "Resample Image" and change it to 150dpi). Now you've 20x20cm image with 150dpi
4. Refine your image with "Level", "Hue Saturation", etc.
5. Sharpen the image using "high pass":
- Duplicate layer
- Filter > Other > High pass > set 1 or 2px
- Desaturate that layer and change layer blending mode to soft light.
- If you need more sharp, duplicate that layer.

This is work nicely for digital print, and can't work great for offset. It's enough for screen printing

Hope that helps