Difference between Lab Scan and Home Scan

How much the different between home scan and lab scan? Let's do some comparison.

Lab scan, yes, just send to lab and they done everything for you.

Home scan, I scan on my own. Using Canon Canoscan 5600F, using software Scangear provided by Canon, mostly using the default setting, only switch on the Unsharp Mask, Reduce Dust and Scratches, Backlight Correction, all set to Medium.

Tested film, Lomography Color Negative 100. 

Using LC-A+ RL.

Situation: Bright Sunshine, time before sunset.

Lab-scanned
Color look more nature, grass more to green-blue, nature skin tone,
white more correctly shown as white.

Home-scanned
Color more to yellow, grass more to green-yellow, yellow skin tone,
white area more to yellow.

But consider with Bright Sunlight, the home-scanned photo is more direct reflect with the situation, which is yellow in color that time. Probably the lab tweak with the White Balance.

Lab-scanned
Blue sky is not blue, white cloud has been washed out, more contrast green.

Home-scanned
Blue sky in blue, white cloud can be seen, green in yellow-green.

 Overall, is not much different between these 2 pictures. Lab-scanned picture, can see the face, which mean is more brighter compare to home-scanned. Blue is in light blue for lab-scanned.

Obviously, the difference between lab and home scan, is about the white balance. ScanGear do not have white balance option, maybe, I don't know where is the option.

Will do more comparison in the future.