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I'm seeing a significant increase in the file size when not using the optimize flag. In the below example, the file jumped from 246K to 976K. Why is the file so much larger?
```bash
$ls -lhd Takeo…
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In a fastapi project, i have this method:
```
@staticmethod
def ios_image_converter(file: UploadFile) -> Tuple[UploadFile, str]:
# source
source_extension = 'heic'
…
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### ImageMagick version
7.1.1-11
### Operating system
Linux
### Operating system, version and so on
Ubuntu22.04.1 LTS 64-bit
### Description
For June 19 build from source (I needed heic), using…
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Does exifr support extracting thumbnail from HEIC file?
With [the demo application](https://mutiny.cz/exifr/), thumbnail can be extracted from JPG file, but it says "File doesn't contain thumbnail"…
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### Description
This problem is discovered in Xamarin Essentials but after tracing the problem down to the code level it appears the same issue is in the Maui version.
When using the Media Picke…
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While testing for a different problem related to JPEG 2000 decoding, I hit this:
```
./examples/heif-enc --jpeg2000 ~/testbed20/silvereye/smalltiles_2024-06-29/simple_osm_tile.png --output testfil…
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The Flutter Engine ships codecs for commonly supported formats. When the application requests image decoding from a file, these built-in codecs are queried. If these codecs are unable to decompress th…
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This only seems to happen on specific Android devices that support the HEIC file format, such as the Samsung S10+
On iOS, the images get converted to JPG correctly, so I am assuming that this is a …
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### ImageMagick version
7.1.1-34
### Operating system
Windows
### Operating system, version and so on
windows11
### Description
>magick Slide1_1.jp2 slide1_1.jpeg
magick: Failed to decode th…
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### HEIC image case (github not support heic file use zip to pack)
[mmo_killer.zip](https://github.com/libvips/pyvips/files/7844941/mmo_killer.zip)
### Python code
```
def pyvips_decoder(image_dat…