when using Phil Sallee JPEG toolbox to extract the DCT coefficients are these the quantized DCT coeefcients or they are only DCT coeffcients??

1 vue (au cours des 30 derniers jours)
please help I am confused
when I write this code
im=jpeg_read('Original.jpg');
Lum=im.coef_arrays{im.comp_info(1).component_id};
here am I extracting only the DCT coefficients of luma, or I am extracting the quantized DCT coefficients?? how can I extract the quantized DCT coefficients ??

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