Using Auto Trace
Using Auto Trace
The Auto Trace command can create vector objects from an image. Especially, it will work with a high-contrast image such as silhouette in black and white or posterized image of several colors.
Auto-tracing is much faster than manually tracing an image with the drawing tools like the Polygon or Bezier Curve tool.
| Auto Trace works with large high-resolution images better than small low-resolution images. It may require some vector editing to tweak vector paths because of produced jagged paths. |
|
|
|
Sample of high-contrast silhouette image | Sample of high-contrast silhouette image | Sample of the objects after vector editing |
To Create Vector Object from an Image
Select an image.
Select the Image contextual tab of the Ribbon.
Click Auto Trace from the Trace panel.
Set the options in the Auto Trace dialog box.
Do one of the following:
Click Apply to check the result. The dialog box remains open.
Click OK to execute the operation and close the dialog box.
Click Cancel to void the operation and close the dialog box.
You can show both input and out, input only, or output only in the Page Layout area from the drop-down list that is located at the lower left corner in the Auto Trace dialog box.
Auto Trace Options
Input Options
The Input options are for the image being traced.
Options | Description |
Channels | Depending on the image type, you can select All Channels or a specific color Channel from the menu. If the image contains only one color channel, like grayscale or black & white, the Channel option and menu is disabled. |
Blur | Use the slider to apply a blur radius to the input image. Blurring removes noise. |
Threshold | This slider is only enabled when the input image is grayscale or color and the output result is black & white. The threshold, in this case, modifies the intermediate black & white image used to create the vector (traced) objects. |
Resolution | This slider adjusts the resolution of the input image. The input image can be traced at its original resolution or at an adjusted one. The Intermediate Preview indicates the image used for tracing after applying the blur or threshold changes, if applicable. |
Output Options
Output options are for the vector objects being created.
Options | Description |
Mode | Select either Black & White, Grayscale, or Color for the output tracing. |
Trace | Select either Fill, Stroke, or Fill+Stroke. The Fill option creates filled outlines. The Stroke option is only available when the mode is set to Black & White. Stroke means that centerlines with an approximate width are created rather than outlines. With the Fill+Stroke option, a mixture of filled vector objects and strokes is made. Strokes are created depending on the values for Max Stroke Width and Min Stroke Length. |
Ignore area less than | This option works as a despeckle filter. If isolated pixels or groups of pixels exist in the input image, they will be ignored, instead of creating vector objects from them. |
Gray Levels | This slider is only enabled when the output is gray or color. When the output is gray, the level value defines the number of gray levels in the intermediate preview and in resulting vector object. When the output is color, the slider controls how well the details in the image are distinguished. A high value provides better distinction. |
Optimize curves | This option reduces the number of points in the curve, without drastically affecting the shape. Optimize is disabled if Make polygons is enabled. |
Make polygons | Select this option to create polygons rather than Bézier curves. The Output preview displays a portion of the resulting vector objects. |
Related Articles
Video - Canvas Envision Auto Trace Tool
Using Transform Numerically
Using Transform Numerically When you turn on the Transform Numerically button, you can specify X, Y, Z distance values or rotation angle numerically for Explodes, Translate and Rotate transformation. To Use Transform Numerically Click Transform ...Using the Status Bar
Using the Status Bar The Status bar shows some helpful information about the edit session and provides some zoom and navigation tools. To Show or Hide the Status Bar Select or deselect the Status Bar checkbox from the Panes panel in the View tab of ...Using the Format Painter
Using the Format Painter Transfer attributes from one object to other objects using the Format Painter. Transferring attributes can help you maintain consistency between objects. You can transfer attributes from a source selection — an object or text ...Using Template (EVTPL) Files
Using Template (EVTPL) Files Templates are special Canvas Envision documents that you can use as the basis for new documents. When you select a template from the Open screen, Canvas Envision creates a new document containing the graphics and text in ...
Popular Articles
Cloud Administration
This topic applies only to Envision Workspace Administrators. Workspace Administration Canvas Envision Administration allows Workspace Administrators to manage their workspace. In Administration, the Workspace Administrator can create and manage: ...Video - Canvas Envision Cutting Planes
Video - Canvas Envision Auto Trace Tool
Video - Canvas Envision Annotation Lens
Video - Canvas Envision Visual Transformation Tools
Recent Articles
Register for Partner Portal Access
Request Access Apply for access to the Canvas GFX Partner Portal here Note: Business email is required for access. Become a Partner If you're interested in becoming a channel, strategic, or platform partner, apply here.Canvas GFX Partner Program
Apply Today Whether you’re a specialized reseller, a systems integrator, or an enterprise solution provider to the manufacturing industry, becoming a Canvas GFX partner delivers a competitive edge. Channel Partners Enhance your product portfolio with ...Release Notes
Release 5.3 of Envision (Current) Features added: Enhanced Document Management features to give you more powerful version control and help you drive new document workflows. Updated Markup & Review functionality, making it easier than ever for teams ...Administrator Area
Printing an .evDoc