Scale Image

The Scale module will scale an image by a percent factor. You can use this module to reduce or enlarge an image within the processing pipeline. Reducing an image can help to speed up the processing frame rate by reducing the amount of data to be processed. However, this is best achieved by changing the image capture format size in the OPTIONS button in the main RoboRealm dialog. Doing so causes the camera driver to scale down the image and send less data. This causes the frame rate to go up significantly.

Interface

Instructions

1. Select the final width and height size as a percent or actual pixel size that you want to scale the image to. This can be smaller or larger than 100% or the current image size.
2. Select the scaling technique that is to be used. Pixel resize is faster and is sharper than other techniques but can cause jaggered edges on high contrast lines. Bilinear resize will use linear interpolation to determine the actual resulting pixel values. This technique is slower but will create smoother more pleasing results.
3. While editing either the pixel size or percent size the module will adjust the width and height to keep the same aspect ratio. To remove this restriction uncheck the "Maintain Aspect Ratio" checkbox.

Example

Original Scaled to 160x120

See Also
Translate

Scale Related Forum Posts Last post Posts Views

How does RoboRealm computes Perspective Transformation
Hi, RoboRealm has a module for perspective correction (http://www.roborealm.com/help/Perspective.ph... 2 years 6 955

Scale Variable
I am having difficulty passing Scale as a variable to RoboRealm. Any ideas? Robo file attached.... 2 years 5 496

Scale with large images
The scale module seems to have problems with large images. See attached.... 2 years 4 775

Zoom
Is it possible to zoom in the image using roborealm?... 3 years 3 851

Bug in Scaling - Wrong aspect ratio
Hi, I have noticed a bug in the scaling. If I choose "maintain aspect ratio" and slide use the up... 3 years 2 701