Name 

Description 

 

JPEGLosslessCrop 

Performs a lossless crop on a JPEG image.  

 

JPEGLosslessFlipY 

Performs a lossless flip-Y on a JPEG image.  

 

JPEGLosslessRotate180 

Performs a lossless 180 degrees rotation on a JPEG image.  

 

JPEGLosslessRotate270 

Performs a lossless 270 degrees rotation on a JPEG image.  

 

JPEGLosslessRotate90 

Performs a lossless 90 degrees rotation on a JPEG image.  

 

JPEGLosslessTranspose 

Transposes pixels across upper-left to lower-right axis on a JPEG image (lossless operation).  

 

JPEGLosslessTransverse 

Transposes pixels across upper-right to lower-left axis on a JPEG image (lossless operation).  

 

TransformJPEG 

Applies transformation to a JPEG image without loss of information.
When a JPEG image is compressed, some of the information in the image is lost.
If you open a JPEG file, modify the image, and save it to another JPEG file, the quality will decrease.
This function allows to opening / modifying / saving JPEG images, without loss of information.