Ephic (Electrophysiology and Imaging with C++)


Tutorial #19

2D Rendering

2D Rendering

The baseline fluorescence intensity (F0) will be the example in this tutorial.

The default display mode is shown on the right.

Original 2D Rendering

Reference Lines

To display reference lines indicating the boundaries between the four quads, check "Reference".

Reference Lines  

Normalization

In some cases, the image is too dim to see it clearly. To take advantage of the full dynamic range of the monitor, check "Normalization".

Original
Original F0
Normalized Rendering
Normalized Rendering

Linear Interpolation

To linearly interpolate the values in monitor pixels between the centers of camera pixels, check "Interpolation".

By default, Ephic converts quad mesh to triangle mesh. You can leave this job to OpenGL by unchecking "Triangle".

Original
Original
Linear Interpolated
Linear Interpolated

Dynamic Range Control - Upper Boundary

By default, Ephic displays the data in full dynamic range (0 to 100 %) of the camera. To change the upper boundary, adjust "High (%)" slider and you will see the change in the imaging window.

Original
Linear Interpolated
Upper Boundary Changed to 36%
Upper Boundary Adjusted

Dynamic Range Control - Lower Boundary

To change the lower boundary, adjust "Low (%)" slider and you will see the change in the imaging window.

Upper Boundary: 36%; Lower Boundary: 0%
Upper Boundary Adjusted
Upper Boundary: 36%; Lower Boundary: 11%
Lower Boundary