Re: [APML] NGC 3953 using LLRGB technique

[Joe Pedit <pedit@email.unc.edu>]

Robert,
That is an excellent image and a fine description of the processing
technique.  Perhaps the APML list should ask that the film based images
that are presented to the list also have this level of image processing
information.  With few exceptions (Mike Cook's work comes to mind), the
film based images we see lack image processing information in sufficient
detail to be useful to most of the group.
Joe

Robert Gendler wrote:
> 
> Hi all,
> OK I'll try to do this a lttle differently <G>.
> I've uploaded a new image of NGC 3953, a nice
> spiral in Ursa Major. The image is at:
> http://www.robgendlerastropics.com/3953.html
> I used the "LLRGB" technique to bring up the rather
> weak color data. The processing steps are outlined below.
> 1)Calibration, stacking, and RGB composite in Maxim.
> 2) LR applied to Luminance in AIP.
> 3)RGB and Luminance saved as 16 bit and brought up
> in PS where curves, levels applied and converted to 8bit.
> 4)First LRGB created using layers in PS. Opacity brought
> to 50% and image flattened. Additional saturation (30%)
> and gaussian blur (1.7 pixels) applied. This image was then used as the
> "new" RGB and two more additional rounds of the same were performed
> which very significantly enhanced the color data. If anyone is interested in
> the details of the technique my LLRGB article can be found at
> http://www.robgendlerastropics.com/LLRGB.html
> Rob Gendler
> Email: robgendler@att.net
> Web site: http://www.robgendlerastropics.com/
> 
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