Signed, Unsigned pixel values

Among the various image types proposed to import a gray-level image, even though you know the dynamic range of your image, you have to choose 'signed' or 'unsigned'...

RGB file: Packed or Planar?

Save RGB color images requires specific strategies - compared to the gray-level images - to store the three red, green, and blue values defining a pixel. Two main strategies exist: Packed and Planar.

Endianness

In this series of posts dedicated to image file, the endianness is one of the parameters available in the Import dialog box. What is this strange 'little-endian byte order'?

Image File: TOC

Table of Contents of a series of posts dedicated to the image file.
When you saved an image - 2D array containing pixel values - in your hard disk, this array is converted into a new structure: the file...

Learning IJ scripting language: Part II

IJ Scripting Language - Part II: Table of Contents

In this series of posts, more programming techniques of the ImageJ scripting macro language are detailed...

Learning Tomography: Angular coverage

After studying the impact of the number of projections [Link], it is time to explore the ins and outs of the angular coverage and its consequences on the quality of the reconstructed image.

Learning Tomography: How many projections?

Two parameters are crucial to compute a good reconstruction: the  number of projections and the angular coverage. Through several examples, we'll see their impact on the reconstructed image.