Optimization suggestions needed

[DGodayal]

I am a masters student as University of Southern California. We are using tiff-ios CocoaPod in one of our apps. We use tiff-ios to read the tiff file. The dimensions of the tiff image are 920 X 1035. The number of bands in the tiff file are 7. It takes approximately 2-2.5 seconds for tiff-ios to read all the rasters. We are looking for even faster solutions.
I wanted to ask for optimizations if possible. Do you have any suggestions to make the reading faster?

[bosborn]

Nothing immediately comes to mind unless you wanted to read smaller windows or fewer samples. Would need to spend time with a profiler or looking for optimizations.

You can fork this project and include as a local project if you would like to investigate. We are open to pull requests if you find any improvements or optimizations.

[DGodayal]

Thanks for response @bosborn.

So from our apps perspective, a pointer to the array of pixels could have been enough. Because we utilize Accelerate framework to do computations on the arrays. It definitely takes time to create an array for such huge data.
Another reason why Tiff-iOS takes time for us is because we need to convert the array to a Double array from an NSArray. My stackoverflow questions explains this issue of conversion better - https://stackoverflow.com/questions/53134646/bridging-between-incompatible-types-in-swift-using-memory-rebind

P.S. I have not worked on objective-c before. If I come up with any improvements will share that for sure.

[bosborn]

Converted from an Issue to a Discussion