Winner of the IBC 2005 New Product Award, Forge is a command line application that processes digital film scans and automatically detects and corrects flecks of dirt, dust and hair.
Forge takes a sequence of images, detects and repairs the dirt and writes out a sequence of cleaned images and, optionally, the mask that identifies the dirt. Forge can be scripted to repair frames as they come out of your scanner or be left to run overnight in batches.
Forge does not multi-thread to take advantage of multiple cores on a computer because you get faster overall throughput by running multiple Forges and letting the operating system divide up the processing among the available cores.
We have run timing tests on a correctly handled original negative with a light dusting per frame, which is typical of most post production scans. Very dirty frames will increase compute times, especially if using motion estimation to detect dirt.
The machine we ran our timing tests on is a 2 X AMD Opteron Dual-Core AMD Opteron(tm) 2212 (4 cores in total), clocked at 2GHz, 4GB memory in total. The images are 2K (2048 x 1556) Northlight DPX scans, all stored on the local disk. The figures are for average overall throughputs when run on a sequence of 20 frames.
With pre-detected dirt (from an IR scan):
When using Forge's motion estimation to detect dirt:
Forge computes everything at full 32bit floating point and therefore requires a 36MB per RGB 2K buffer and it uses many such buffers. So, the memory requirements are...
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