Digital Imaging
Provides a comprehensive practical guide to the entire digital chain, from capture -- with coverage of digital cameras, to output -- with extensive information on image adjustments and colour management.
TABLE OF CONTENTS Digital Imaging
Cropping
It is possible to rotate, crop and resample an image in one action. Crop to a specific size and resolution in order to optimise the file size and reset the resolution from the scanning to the output resolution.
Activity 1
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Scan a photograph to obtain a file size a little over 11 Megabytes.
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Click the crop icon to display its 'Options'. When using LE double-click the crop icon to display its options palette and select 'Fixed Target Size' together with the units of measurement you want from the options.
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Enter values for the size and resolution of your output image (enter 'in' for inches or 'cm' for centimetres after the unit of measurement when using Photoshop 6).
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Drag the cropping marquee over the image to select the area for cropping.
When the mouse button is released, the crop marquee appears with handles.
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Adjust the crop marquee by dragging the handles:
Rotate the marquee by dragging the curved arrow icon that appears when the pointer is positioned near a corner handle.
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Press the Enter/Return key to complete the crop or Esc. to cancel.
| Note | To crop using precise measurements constrains the 'aspect ratio', e.g. an 8 x 10 inch print has an aspect ratio of 4:5 whilst a 35mm negative has the different aspect ratio of 2:3. If the aspect ratio of the fixed target size does not conform to the aspect ratio of the original capture or scan then some loss of the original image will result. |
Copyright Mark Galer and Les Horvat 2001 under license agreement with Books24x7
