This week's book giveaway is in the Other Languages forum.
We're giving away four copies of Functional Reactive Programming and have Stephen Blackheath and Anthony Jones on-line!
See this thread for details.
Win a copy of Functional Reactive Programming this week in the Other Languages forum!
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how to detect the alpha channel in an image ?

u sankarlal
Posts: 11
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hi all,
I'm having a problem to find whether the png image is supporting alpha channel. Though, alpha channel is supported by all png files, there may be a chance to create a png image without having Alpha channels thro' photoshop, by saving as - > and selecting exclude alphachannels option.
In this scenario, I've to find whether the png is supporting alpha channel or not ? Also, If supported, i've to detect how many number of rgb pixels in that image and also how many numbers of alpha pixels in it ?
thanks in advance
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