Enter the desired resolution for the extracted images. Note: If you specify 0, the original resolution of the image is used. This means that if you deal with many images having different resolutions, the extracted images will also have all different resolutions.
Note that resolution depends also whether scaling was applied or not.
The resolution of the extracted image is set to :
•the resolution specified in the chosen destination, if no scaling is applied •the original resolution of the image, if the resolution specified in the chosen destination is 0, and if no scaling is applied. •If you apply scaling, the resolution is always recalculated using the expression: new_resolution = resolution * 100/resizing_percentage
For example, you resized a image to 40% of the original size, the specified resolution was 120dpi, and the original resolution was 100dpi. New resolution is 120*100/40 = 300dpi. If you resized the image to 40% of the original size, and the specified resolution was 0, while the original resolution of the image was 100, the new resolution will be 100*100/40 = 250dpi.
If you want to limit the range of output resolutions, you have to limit the resizing. To calculate limit, use this:
min_limit = destination_resolution/desired_max_resolution*100
For example, to have a resolution between 120 and 130dpi, the min_limit is 120/130*100 which equals to 92.3. Enter 92 in the Min box.
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