[FEATURE] Extract multiple crops from one image about tflite_flutter_helper HOT 2 CLOSED

Thanks a lot, @mdejeans.

In such way with a variable number of parametrizable crop positions, we can do other crops that centered ones, even if we only need one crop.
So here is the discussion about how to do realize such function and. Is creating a new function into image/ops/ the best way to do or it would be easier if ResizeWithCropOrPadOp can take crop parameters as arguments?

Having the flexibility to choose crop positions other than the center is definitely useful. We can add an optional parameter to ResizeWithCropOrPadOp for this purpose.

So, if I want to extract 4 crops of a 200x200 image I can set cropsPosition=[[0,0], [0,100], [100,0], [100, 100]], cropHeight = 100 and cropWidth = 100 to get a TensorImage of shape (4, 100, 100, 3).

It might not be possible, because the image processing pipeline and TensorImage are designed for a single image only, https://github.com/am15h/tflite_flutter_helper/blob/master/lib/src/image/tensor_image.dart#L90.

For multiple crops, a better option might be to manually create multiple TensorImage objects processed using different parameters in ResizeWithCropOrPadOp.

Please let me know what you think about this.

from tflite_flutter_helper.

Having the flexibility to choose crop positions other than the center is definitely useful. We can add an optional parameter to ResizeWithCropOrPadOp for this purpose.

Please see PR #16 to an answer for this part of the feature

from tflite_flutter_helper.