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