Import sequence and size of the imported slices

Usage & Issues
#1

Hi,

I am new to both this forum and ImageJ. I need to import a series of raw DNG files and is the File>import>image sequence function. I select the directory in which my raw files are stored and check the virtual stack box because my raw files come from a Pentax K-5 camera and are 15Mb big while I have only 2GB ram.
The result is a stack of small image slices of 160x120 pixels. When I open the raw file one by one ImageJ opens the slice in the right size.

I do not see any parameter to be adapted for obtaining a virtual stack of 4700x3400 pixels (+/-) slices. Could it be that image sequence creates a stack op the thumbnail images in the file? How can I correct this?

Thanks in advance,

Regards,

Stefan

#2

I partly solved the issue.
Using File>Import>Image Sequence opens a series of files but it is not mentioned whether it uses DCRaw Reader is used required for importing PENTAX raw files. I tried to open all DNG files and saved them as TIFF files.
When then importing the image sequence as virtual stack I works except that it presents grayscale images. So far so good. Now trying to find out why it is not reading full RGB slices.

#3

Also the next hurdle is taken.
The saved TIFF files are RGB pictures. Using File>Import>TIFF Virtual Stack creates a stack of 3 slices (R,G,B). The different stacks need now to be combined, I suggest to put all R slices in one stack, all G slices in another stack and all B slices in a third stack.