Colours into tones in black-and-white
This exercise involved taking an image of a group of objects.
After the image had been taken, in Post Processing (PP), I had to change the image to monochrome and then change the brightness sliders for each individual colour (this has the same effect as a coloured filter) and see how by applying brightness the image changes.
I first tried this exercise with a group of candles. This idea was dismissed in the PP phase, as when trying to add the brightness to the blue and green image, the candle didn’t show the effect that I was after. I will try and find out the reason behind this, but currently I have no idea why it only worked properly on the red and yellow candles.
Colour image
This is the basic image as it comes out from the camera. I chose to use the straws mixed like this, so that when it came to changing the brightness on the individual colours, you would get the effect of the straw that is the colour of the brightness change, turning to what appears to be a white colour (or lighter than the surrounding colours).
Monochrome
When I look at this image, I can make out the straws that are yellow, due to them being lighter than the other colours. There is very little difference in the shade between the red/blue/green straws, and it is only once I knew where a specific colour straw was, was I able to distinguish between them. I was expecting to be able to distinguish more between the separate colours.
Monochrome with Yellow brightness
When I look at this image, I can clearly see the yellow straws, as these are the ones that have taken on a white effect. Looking at the other straws, I can see slight variations in the shade of the straws, but some do appear too close to separate.
Monochrome with Red brightness
Looking at this image, the red straws are very clear to see. They have taken on a whiteness about them; however, they are not as white in effect as the yellow straws were. The yellow straws are a little lighter than they were in the basic monochrome image, but the green and blue straws appear to have the same shade.
Monochrome with Blue brightness
Once again, turning up the brightness on the blue scale has turned the blue straws a white tone. The slight difference is that the straw appears to be more of a solid white colour. Looking at the straws, the red straw does appear more transparent than the blue; this is why I think the blue has this look to it. The yellow straws are distinguishable again, and the red and green straws are still very similar in shade.
Monochrome with Green brightness
As with the previous colours, turning up the brightness on the green scale has turned the green straws white. The yellow straws are distinguishable as they still have a lighter shade and the blue and red straws have a slightly different shade to them.
I found that depending on the colour, the brightness didn’t have to be turned up as much, for instance, the yellow straws didn’t take as much brightness as the blue straws, I believe this is due to the yellow being a warmer/brighter colour.