21.12.2012 Views

Canvas 12 User Guide - ACDSee

Canvas 12 User Guide - ACDSee

Canvas 12 User Guide - ACDSee

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

���������������������<br />

Chapter 5: Painting And Image Editing<br />

Control points Click to add control points to both the source and target. Every source<br />

point must have a corresponding target point. At least 3 points must be<br />

defined to enable the Create button.<br />

Control points are saved in relative position to object, so if you drag or<br />

scale an object, the points will be scaled correspondingly. Save the<br />

document after change the control points configuration. When exiting<br />

the session, current point configuration is automatically saved.<br />

Segment points Click to add segments to both the source and target. Every source<br />

segment must have a corresponding target segment.<br />

Curve points Click to add curve segments to both the source and target. Every source<br />

curve must have a corresponding target curve.<br />

End curve points Click to complete the curve.<br />

Select all points Click to select all control points.<br />

Delete Delete has two functions: delete current curve, if you are creating a<br />

curve, or delete selection, if any.<br />

Save Click this button to save the control points within the source and target.<br />

Reload Click this button to reload the saved points.<br />

Pixel resampling Select a resampling method.<br />

Nearest neighbor. Will remove some pixel information from your target<br />

image; however, if used, this setting will be the fastest.<br />

Bilinear. Will use a bilinear interpolation algorithm during<br />

downsampling.<br />

Biquadratic. Estimates the color at a pixel in the destination image by<br />

an average of 9 pixels surrounding the closest corresponding pixel in<br />

the source image.<br />

Bicubic. Estimates the colour at a pixel in the destination image by an<br />

average of 16 pixels surrounding the closest corresponding pixel in the<br />

source image.<br />

Polygonal. Every source pixel is mapped to a polygon in the target.<br />

Auto. <strong>Canvas</strong> selects the most appropriate method for resampling.<br />

Show Names Select this check box if you want to see labels. Use the Size menu to<br />

adjust the size of control points.<br />

Shape Select either Circle or Square for the control point shape.<br />

545

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!