I understand that when I make B/W images from color images I need to use a color space of aRGB or ProPhoto RGB just like processing any color images. But when I save a B/W iamage into a jpeg file, does it matter to save it in aRGB or sRGB? In other words, would an aRGB B/W image look different from a sRGB version on web browsers?
Thanks in advance,
Frank
[quote name='Frank' timestamp='1341378643' post='19306']
I understand that when I make B/W images from color images I need to use a color space of aRGB or ProPhoto RGB just like processing any color images. But when I save a B/W iamage into a jpeg file, does it matter to save it in aRGB or sRGB? In other words, would an aRGB B/W image look different from a sRGB version on web browsers?
Thanks in advance,
Frank
[/quote]
Any color space with gamma 2.2 or sRGB variant of it should be fine for B/W.
I suggest using only sRGB for color, as color managed browsers are still not so common.
Posts: 1,597
Threads: 22
Joined: Apr 2010
Reputation:
8
Hi Frank,
Yes, it makes a difference, because the different colour spaces also interpret luminosity differently,basically because greys, whites and blacks are essentially specific mixes of all colours. Furthermore, the moment you start using a tint, like sepia, etc., you will also make use of the colour rendition of a colour space, and even more so when using B&W to e.g. emphasise a specific object with a single colour (red strawberry in otherwise B&W surroundings, etc.).
IOW, use the colour space you'd normally use, and you should be fine.
HTH, kind regards, Wim
Gear: Canon EOS R with 3 primes and 2 zooms, 4 EF-R adapters, Canon EOS 5 (analog), 9 Canon EF primes, a lone Canon EF zoom, 2 extenders, 2 converters, tubes; Olympus OM-D 1 Mk II & Pen F with 12 primes, 6 zooms, and 3 Metabones EF-MFT adapters ....
[quote name='wim' timestamp='1341429342' post='19320']
Hi Frank,
Yes, it makes a difference, because the different colour spaces also interpret luminosity differently,basically because greys, whites and blacks are essentially specific mixes of all colours. Furthermore, the moment you start using a tint, like sepia, etc., you will also make use of the colour rendition of a colour space, and even more so when using B&W to e.g. emphasise a specific object with a single colour (red strawberry in otherwise B&W surroundings, etc.).
IOW, use the colour space you'd normally use, and you should be fine.
HTH, kind regards, Wim
[/quote]
Thank you, Wim. I understand it now.
Best regards,
Frank
