image_rotate

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Contains a node that rotates an image stream in a way that minimizes the angle between a vector in some arbitrary frame and a vector in the camera frame. The frame of the outgoing image is published by the node.

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This node is intended to allow camera images to be visualized in an orientation that is more intuitive than the hardware-constrained orientation of the physical camera. This is particularly helpful, for example, to show images from the PR2’s forearm cameras with a consistent up direction, despite the fact that the forearms need to rotate in arbitrary ways during manipulation.

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It is not recommended to use the output from this node for further computation, as it interpolates the source image, introduces black borders, and does not output a camera_info.

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