Converting “ascii hex string of a bitmap image” into an actual image?
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Working with a Topaz Systems fingerprint reader. It's... Interesting to say the least. Here is what the documentation says:
GetBmpString() - returns ascii hex string of bmp fingerprint--useful for web applications to send fingerprint image across
the web
And here is what that actually returns: https://gist.github.com/anonymous/4d201533b07f53c07c2c (too long to paste)
Problem being, I have absolutely no idea what format that is, or how to save it as a bitmap image. I can accomplish this either locally with JS, or server-side with PHP.
javascript php bitmap hex fingerprint
asked Feb 4 '16 at 21:55
Charles Zink
1,40441624
|
show 3 more comments
up vote
0
down vote
favorite
Working with a Topaz Systems fingerprint reader. It's... Interesting to say the least. Here is what the documentation says:
GetBmpString() - returns ascii hex string of bmp fingerprint--useful for web applications to send fingerprint image across
the web
And here is what that actually returns: https://gist.github.com/anonymous/4d201533b07f53c07c2c (too long to paste)
Problem being, I have absolutely no idea what format that is, or how to save it as a bitmap image. I can accomplish this either locally with JS, or server-side with PHP.
javascript php bitmap hex fingerprint
asked Feb 4 '16 at 21:55
Charles Zink
1,40441624
Is that the entire returned data? If my analysis is correct, there should be a lot more of it.
– duskwuff
Feb 4 '16 at 22:28
Depends how small the image is. Looks like a lot of white pixels. It looks like a bitmap with extra header data in it. I've been looking at it for a couple minutes but not sure yet.
– Rob Louie
Feb 4 '16 at 22:38
Yes, that's the entire returned data. It seemed small to me too, but the (expected) image is only 500x500px and contains mostly whitespace.
– Charles Zink
Feb 4 '16 at 22:41
I'm sorry, I may have stupidly truncated a bunch of the data. Here is an updated gist that contains the full response. Question still stands.. I'm not sure how to handle this. gist.github.com/anonymous/4d201533b07f53c07c2c
– Charles Zink
Feb 4 '16 at 22:50
Ha, seems even stranger. Have you tried the GetBitmapBufferBytes() method instead? That might at the very least shed some light on what we're supposed to be dealing with.
– Rob Louie
Feb 4 '16 at 22:59
|
show 3 more comments
up vote
0
down vote
favorite
up vote
0
down vote
favorite
Working with a Topaz Systems fingerprint reader. It's... Interesting to say the least. Here is what the documentation says:
GetBmpString() - returns ascii hex string of bmp fingerprint--useful for web applications to send fingerprint image across
the web
And here is what that actually returns: https://gist.github.com/anonymous/4d201533b07f53c07c2c (too long to paste)
Problem being, I have absolutely no idea what format that is, or how to save it as a bitmap image. I can accomplish this either locally with JS, or server-side with PHP.
javascript php bitmap hex fingerprint
asked Feb 4 '16 at 21:55
Charles Zink
1,40441624
Working with a Topaz Systems fingerprint reader. It's... Interesting to say the least. Here is what the documentation says:
GetBmpString() - returns ascii hex string of bmp fingerprint--useful for web applications to send fingerprint image across
the web
And here is what that actually returns: https://gist.github.com/anonymous/4d201533b07f53c07c2c (too long to paste)
Problem being, I have absolutely no idea what format that is, or how to save it as a bitmap image. I can accomplish this either locally with JS, or server-side with PHP.
javascript php bitmap hex fingerprint
javascript php bitmap hex fingerprint
asked Feb 4 '16 at 21:55
Charles Zink
1,40441624
asked Feb 4 '16 at 21:55
Charles Zink
1,40441624
edited Feb 4 '16 at 22:53
asked Feb 4 '16 at 21:55
Charles Zink
1,40441624
asked Feb 4 '16 at 21:55
Charles Zink
1,40441624
asked Feb 4 '16 at 21:55
Charles Zink
1,40441624
1,40441624
Is that the entire returned data? If my analysis is correct, there should be a lot more of it.
– duskwuff
Feb 4 '16 at 22:28
Depends how small the image is. Looks like a lot of white pixels. It looks like a bitmap with extra header data in it. I've been looking at it for a couple minutes but not sure yet.
– Rob Louie
Feb 4 '16 at 22:38
Yes, that's the entire returned data. It seemed small to me too, but the (expected) image is only 500x500px and contains mostly whitespace.
– Charles Zink
Feb 4 '16 at 22:41
I'm sorry, I may have stupidly truncated a bunch of the data. Here is an updated gist that contains the full response. Question still stands.. I'm not sure how to handle this. gist.github.com/anonymous/4d201533b07f53c07c2c
– Charles Zink
Feb 4 '16 at 22:50
Ha, seems even stranger. Have you tried the GetBitmapBufferBytes() method instead? That might at the very least shed some light on what we're supposed to be dealing with.
– Rob Louie
Feb 4 '16 at 22:59
|
show 3 more comments
Is that the entire returned data? If my analysis is correct, there should be a lot more of it.
– duskwuff
Feb 4 '16 at 22:28
Depends how small the image is. Looks like a lot of white pixels. It looks like a bitmap with extra header data in it. I've been looking at it for a couple minutes but not sure yet.
– Rob Louie
Feb 4 '16 at 22:38
Yes, that's the entire returned data. It seemed small to me too, but the (expected) image is only 500x500px and contains mostly whitespace.
– Charles Zink
Feb 4 '16 at 22:41
I'm sorry, I may have stupidly truncated a bunch of the data. Here is an updated gist that contains the full response. Question still stands.. I'm not sure how to handle this. gist.github.com/anonymous/4d201533b07f53c07c2c
– Charles Zink
Feb 4 '16 at 22:50
Ha, seems even stranger. Have you tried the GetBitmapBufferBytes() method instead? That might at the very least shed some light on what we're supposed to be dealing with.
– Rob Louie
Feb 4 '16 at 22:59
Is that the entire returned data? If my analysis is correct, there should be a lot more of it.
– duskwuff
Feb 4 '16 at 22:28
Is that the entire returned data? If my analysis is correct, there should be a lot more of it.
– duskwuff
Feb 4 '16 at 22:28
Depends how small the image is. Looks like a lot of white pixels. It looks like a bitmap with extra header data in it. I've been looking at it for a couple minutes but not sure yet.
– Rob Louie
Feb 4 '16 at 22:38
Depends how small the image is. Looks like a lot of white pixels. It looks like a bitmap with extra header data in it. I've been looking at it for a couple minutes but not sure yet.
– Rob Louie
Feb 4 '16 at 22:38
Yes, that's the entire returned data. It seemed small to me too, but the (expected) image is only 500x500px and contains mostly whitespace.
– Charles Zink
Feb 4 '16 at 22:41
Yes, that's the entire returned data. It seemed small to me too, but the (expected) image is only 500x500px and contains mostly whitespace.
– Charles Zink
Feb 4 '16 at 22:41
I'm sorry, I may have stupidly truncated a bunch of the data. Here is an updated gist that contains the full response. Question still stands.. I'm not sure how to handle this. gist.github.com/anonymous/4d201533b07f53c07c2c
– Charles Zink
Feb 4 '16 at 22:50
I'm sorry, I may have stupidly truncated a bunch of the data. Here is an updated gist that contains the full response. Question still stands.. I'm not sure how to handle this. gist.github.com/anonymous/4d201533b07f53c07c2c
– Charles Zink
Feb 4 '16 at 22:50
Ha, seems even stranger. Have you tried the GetBitmapBufferBytes() method instead? That might at the very least shed some light on what we're supposed to be dealing with.
– Rob Louie
Feb 4 '16 at 22:59
Ha, seems even stranger. Have you tried the GetBitmapBufferBytes() method instead? That might at the very least shed some light on what we're supposed to be dealing with.
– Rob Louie
Feb 4 '16 at 22:59
|
show 3 more comments
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Is that the entire returned data? If my analysis is correct, there should be a lot more of it.
– duskwuff
Feb 4 '16 at 22:28
Depends how small the image is. Looks like a lot of white pixels. It looks like a bitmap with extra header data in it. I've been looking at it for a couple minutes but not sure yet.
– Rob Louie
Feb 4 '16 at 22:38
Yes, that's the entire returned data. It seemed small to me too, but the (expected) image is only 500x500px and contains mostly whitespace.
– Charles Zink
Feb 4 '16 at 22:41
I'm sorry, I may have stupidly truncated a bunch of the data. Here is an updated gist that contains the full response. Question still stands.. I'm not sure how to handle this. gist.github.com/anonymous/4d201533b07f53c07c2c
– Charles Zink
Feb 4 '16 at 22:50
Ha, seems even stranger. Have you tried the GetBitmapBufferBytes() method instead? That might at the very least shed some light on what we're supposed to be dealing with.
– Rob Louie
Feb 4 '16 at 22:59