Convert "Grayscale I16" to "RGB U64"

Hello,
I need to convert an image from Grayscale I16 to RGB U64, but it doesn't work (I have joined a zip file).
I think there is a bug in the NI Vision, or it's not implemented because I have no problem to do it from Grayscale U8 to RBG32.
Can you help me to find a solution to do that?
I need to use ReplaceColorPlane function or equivalent because I have to perform various treatments on each layer (RGB).
Thanks
Solved!
Go to Solution.
Attachments:
tests.zip ‏217 KB

Hi Badgones73,
The U64 image is composed of four U16 values (R, G, B and alpha). LabVIEW represents 16-bit images as an I16. When the IMAQ Extract Color Planes is called, the U16 value must be converted into I16 values. This is done by converting all values with a MSB of 1 to a value of 0. This means all the values from 32,768 to 65,535 are now 0. To avoid using losing these values, you must read the image into LabVIEW without using the vision functions.
Once you have extracted the U16 values, they can be converted from U16 images to I16 images. Once this is done, you will be able to use all of the Vision functions.
Also, i invite you to read the information on our website:
How Do I Convert a Color Image to Grayscale?
http://digital.ni.com/public.nsf/allkb/ED42C55C29B9B34C862570A60079952E?OpenDocument
Regards,
Rémi D.
National Instruments France
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Bonjour,
je cherche depuis un petit moment sur tous les forums que je connais, et je ne trouve pas de réponse à mon besoin, à savoir convertir une image en niveaux de gris de 16 bits en RGB 64 bits. J'ai réussi à le faire en 32 bits, mais la dégradation est trop importante pour mes besoins.
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Si ça peut vous aider, j'ai Labview 8.6 et NI Vision.
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Si vous souhaitez, voici le VI que j'essaye de faire.
Il marche très bien en grayscale 8bits => RGB 32 bits, mais pas en Grayscale 16 bits => RGB 64 bits...
J'ai supprimé tout le traitement que j'effectue sur l'image pour que ce soit plus lisible. Comme j'effectue divers traitement suivant la couche de l'image (R,G,B), je suis obligé de passer par un Imaq ReplaceColorPlane.
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tests.zip ‏217 KB

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Convert "Grayscale I16" to "RGB U64"

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