This is similar to the "I'm Feeling Lucky" button in Picasa.
Args
image_data
String of the source image data.
output_encoding
A value from OUTPUT_ENCODING_TYPES.
quality
A value between 1 and 100 to specify the quality of the encoding.
This value is only used to control JPEG quality.
correct_orientation
A value from ORIENTATION_CORRECTION_TYPE to indicate
if orientation correction should be performed during the transformation.
rpc
An optional UserRPC object.
transparent_substitution_rgb
When transparent pixels are not supported in
the destination image format, then transparent pixels will be substituted
for the specified color, which must be in 32-bit RGB format.
Returns
A UserRPC object.
Raises
Error
All errors. See Image.ExecuteTransforms for more details.