Is There An Exposed Method To Programmatically Create The Filtered Image

[RalphMarvin]

What am trying to achieve is handle several images, I have managed to get all the images in page carousel, so when you swipe left and right you see all the images along side the filters. My problem right now, all this navigation is done inside a page (stateful widget). I cant seem to find a way of getting all the filtered images so i was wondering if there is an exposed method that can be called to return the filtered image.

[skkallayath]

Hi @RalphMarvin

You can use the following code to apply the filter on a file

Image applyFilterOnImageFile(Filter filter, File src) {
  Image image = decodeImage(src.readAsBytesSync());
  var pixels = image.getBytes();
  filter.apply(pixels, image.width, image.height);
  Image out = Image.fromBytes(image.width, image.height, pixels);
  return out;
}

if you want to save the filtered image to file (say at path destFileName),
use return new File(destFileName).writeAsBytesSync(encodeNamedImage(out, destFileName));

I will try to expose a function in the package in the upcoming release :)

[RalphMarvin]

Okay, thank you very much for the code samples, exactly what I need.

…

On Sat, Sep 5, 2020, 2:28 PM Sharafudheen KK ***@***.***> wrote: Hi @RalphMarvin <https://github.com/RalphMarvin> You can use the following code to apply the filter on a file Image applyFilterOnImageFile(Filter filter, File src) { Image image = decodeImage(src.readAsBytesSync()); var pixels = image.getBytes(); filter.apply(pixels, image.width, image.height); Image out = Image.fromBytes(image.width, image.height, pixels); return out; } if you want to save the filtered image to file (say at path destFileName), use return new File(destFileName).writeAsBytesSync(encodeNamedImage(out, destFileName)); I will try to expose a function in the package in the upcoming release :) — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#47 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ADY6HKGUMCN5GKS4CMZMO5TSEJDITANCNFSM4QUVYCCA> .

[RalphMarvin]

Hi @RalphMarvin

You can use the following code to apply the filter on a file

Image applyFilterOnImageFile(Filter filter, File src) {
  Image image = decodeImage(src.readAsBytesSync());
  var pixels = image.getBytes();
  filter.apply(pixels, image.width, image.height);
  Image out = Image.fromBytes(image.width, image.height, pixels);
  return out;
}

if you want to save the filtered image to file (say at path destFileName),
use return new File(destFileName).writeAsBytesSync(encodeNamedImage(out, destFileName));

I will try to expose a function in the package in the upcoming release :)

But with this approach, how can you get the selected filter ?

[skkallayath]

You are passing the selected filter to this method.