I have large files (used a 12meg pixel camera) that I am trying to reduce the image sizes. Unless I uncheck "resample image," everytime I shrink the image size, the photos look terrible (lose focus)The problem with unchecking the "resample image," is that it does a great job quality wise, but leaves huge files of 1000 dpi or more resolution. Is there a way (or a plugin) that I can reduce the resolution to 300, and still have a great looking photo?
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Image size reduction
- Thread starter kerrysr
- Start date
If you just want to change the resolution (PPI) Pixels Per Inch (DPI = Dots per Inch, what you use for printing);
Select the Crop tool, remove any values in the Width and Height boxs and put your new resolution in the Resoution box. Select the whole document and double click. Your document is now at the new resolution.
Select the Crop tool, remove any values in the Width and Height boxs and put your new resolution in the Resoution box. Select the whole document and double click. Your document is now at the new resolution.
...what resampling method are you using to lose such noticeable quality?
...there are different resampling methods in the latest photoshop, nearest neighbour, bilinear and three versions of bicubic...
...essentially, if you were to position your raw image into a layout application and export to pdf with image downsampling enabled, you would be performing a similar process to what photoshop would do. Depending on what resampling method you choose upon you can end up with quite different results...
...when resampling images it often helps to sharpen them at the end...
...if photoshop's resampling methods aren't satisfactory then verify the resampling method you have selected. If it is the bicubic algorithm being used then press quality PDFs won't be much good for your images either...
...the only alternative is genuine fractals really, but this is more involved with making images larger for poster work and costs a bit of money:
Andrew
...there are different resampling methods in the latest photoshop, nearest neighbour, bilinear and three versions of bicubic...
...essentially, if you were to position your raw image into a layout application and export to pdf with image downsampling enabled, you would be performing a similar process to what photoshop would do. Depending on what resampling method you choose upon you can end up with quite different results...
...when resampling images it often helps to sharpen them at the end...
...if photoshop's resampling methods aren't satisfactory then verify the resampling method you have selected. If it is the bicubic algorithm being used then press quality PDFs won't be much good for your images either...
...the only alternative is genuine fractals really, but this is more involved with making images larger for poster work and costs a bit of money:
Andrew
I agree with apepp for the method for classic photographs, even if I prefer to use nomal bicubic and a "controlled" post-sharpening method. The point to judge the result is to look at 100% to the screen. I use currently a 12Mpixels camera, like you, and do that all the time. On another way, when you uncheck "reample", you DON'T resize your image (so: no changes), you only change the print size, but change anything about the pixels !
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