Colours into tones in black and white

This image has a blue filter as you can see the bowl is almost white and the yellow sticks have blended in with the bowl.

This is the first image in colour

 This image has a green filter, the bowl is darker and the peppers a#have become brighter.

 This image is a straight black and white conversion with no filter I dont feel that there is any differences in the colours or changes other than greyscale.

 Red filter was applied to this image. The red pepper is alot brighter on this image it almost feels like it should be yellow.

 This image has a yellow filter applied. again the pepper is brighter but not as bright as with a red filter. I thought the cheese sticks would have some sort of effect on them but they appear to be the same as most other filters.