 Norman P. Banks |
techniques what is white balance?
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doug Nelson |
You're not much on words; you MUST be a photographer. White balance is the relationship between the very brightest tones in a digital image and all the tones that are darker. Sometimes, when an image is captured by a digital camera, and even when it is scanned from film or a print, an inbalance can result when too much of the very brightest end of the entire scale of tones is shown as being pure white. These tones are said to "blow out" to white, showing little or no highlight detail. The software in a digital camera, and certainly any imaging software, can make an adjustment in the white balance so that the entire range of tones on the high end is expanded. The pure whites, then, will be pushed over to the bright end of the scale where they belong. See scantips.com for a very thorough explanation of this, and how to deal with it in scanning software and in Photoshop.
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Norman P. Banks |
Wow...now that is what I call quick response time! Thanks so much Doug for your informative answer. This is my first time uploading pics to this site, and I must say that I think I'm gonna like it here! I just bought a Fujifilm Finepic 4900Z with all the bells & whistles and it has a white bal. adj feature. If you have the time to look at the pic I sent to the contest section, you'll notice that the gourd in the lower left corner is very light and lacking some detail. If I understand correctly what you have said, then I could have adjusted for the high end of the tonal scale! Once again, thanks so much for the info Doug, and I hope to correspond with you again! Norm B
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doug Nelson |
Norm That's a blown-out highlight, all right. Maybe some lighting conditions cause glare, anyway. We can't always expect the pixel-shuffling to bring out detail that just isn't there to begin with. But then, maybe it could've been saved. Photoshop, or one of the spinoffs, may be able to fix things like this selectively. It's a nice still life. I can feel the crinkle of the dry leaves. I answer a couple of things over morning coffee. today I got lucky and had a little time.
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