Author: Anonymous

How can we compute the angle of the gradient of a 2D image? (choose the best answer)  

Why do we like to write spatial transforms in the homogeneous form? (choose the 1 best answer)

In binary morphology, a closing operation is a great way to remove small fjords

An unsharp mask filter: (choose 1 best answer)

The artificial image on the bottom is a resampled version of the one on the top. From what you know of image processing, select approbation explanation. (Check 1 best answer.)

Dynamic programing includes hard constraints requiring connectivity.

Which of the following compounds will undergo Friedel-Crafts alkylation with (CH3)3CCl, AlCl3 most rapidly?

Derivatives of the compound shown below are currently being examined for their effectiveness in treating drug addiction and metabolic syndrome (J. Med. Chem. 2006, 872). Which sequence ranks the following aromatic rings of this compound in order of increasing reactivity in an electrophilic aromatic substitution reaction (slowest to fastest reacting)?

In carbon NMR, the carbon atom of the carbonyl group in aldehydes and ketones has a chemical shift of about ________.

What sequence of reactions can accomplish the following synthesis?