Compress Image in Swift without losing background transparency
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i am looking for a way to compress images with background transparency. I already know about UIImageJPEGRepresentation(FILE, CompressionLevel). With this snippet I reach my wished compressed file size (<100Kb (image quality is not that important)) but I lose my background transparency.
Does anyone of you guys know how to compress an image without losing its transparency?
if this helps in any way: I need to convert the image to data format anyways for certain actions and calculation.
swift image compression png jpeg
asked Nov 17 '18 at 1:25
Nick SeidelNick Seidel
93
add a comment |
i am looking for a way to compress images with background transparency. I already know about UIImageJPEGRepresentation(FILE, CompressionLevel). With this snippet I reach my wished compressed file size (<100Kb (image quality is not that important)) but I lose my background transparency.
Does anyone of you guys know how to compress an image without losing its transparency?
if this helps in any way: I need to convert the image to data format anyways for certain actions and calculation.
swift image compression png jpeg
asked Nov 17 '18 at 1:25
Nick SeidelNick Seidel
93
Possible duplicate of Convert an image to a 16bit color image
– MwcsMac
Nov 17 '18 at 1:45
2
JPEG doesn't support transparency, instead, you need to use PNG
– MadProgrammer
Nov 17 '18 at 2:26
I am living same problem, @MadProgrammer We know jpeg doesn't support transparency but UIImagePNGRepresentation method is not compress the PNG images. Question is "How to compress PNG images without losing bg transparency"
– Savas Adar
Nov 27 '18 at 14:43
Png does compress the image (try writing the data out manually, it’s even better the putting it through a zip stream), it’s just not as good as jpg
– MadProgrammer
Nov 27 '18 at 19:18
add a comment |
i am looking for a way to compress images with background transparency. I already know about UIImageJPEGRepresentation(FILE, CompressionLevel). With this snippet I reach my wished compressed file size (<100Kb (image quality is not that important)) but I lose my background transparency.
Does anyone of you guys know how to compress an image without losing its transparency?
if this helps in any way: I need to convert the image to data format anyways for certain actions and calculation.
swift image compression png jpeg
asked Nov 17 '18 at 1:25
Nick SeidelNick Seidel
93
i am looking for a way to compress images with background transparency. I already know about UIImageJPEGRepresentation(FILE, CompressionLevel). With this snippet I reach my wished compressed file size (<100Kb (image quality is not that important)) but I lose my background transparency.
Does anyone of you guys know how to compress an image without losing its transparency?
if this helps in any way: I need to convert the image to data format anyways for certain actions and calculation.
swift image compression png jpeg
swift image compression png jpeg
asked Nov 17 '18 at 1:25
Nick SeidelNick Seidel
93
asked Nov 17 '18 at 1:25
Nick SeidelNick Seidel
93
asked Nov 17 '18 at 1:25
Nick SeidelNick Seidel
93
asked Nov 17 '18 at 1:25
Nick SeidelNick Seidel
93
asked Nov 17 '18 at 1:25
Nick SeidelNick Seidel
93
93
Possible duplicate of Convert an image to a 16bit color image
– MwcsMac
Nov 17 '18 at 1:45
2
JPEG doesn't support transparency, instead, you need to use PNG
– MadProgrammer
Nov 17 '18 at 2:26
I am living same problem, @MadProgrammer We know jpeg doesn't support transparency but UIImagePNGRepresentation method is not compress the PNG images. Question is "How to compress PNG images without losing bg transparency"
– Savas Adar
Nov 27 '18 at 14:43
Png does compress the image (try writing the data out manually, it’s even better the putting it through a zip stream), it’s just not as good as jpg
– MadProgrammer
Nov 27 '18 at 19:18
add a comment |
Possible duplicate of Convert an image to a 16bit color image
– MwcsMac
Nov 17 '18 at 1:45
2
JPEG doesn't support transparency, instead, you need to use PNG
– MadProgrammer
Nov 17 '18 at 2:26
I am living same problem, @MadProgrammer We know jpeg doesn't support transparency but UIImagePNGRepresentation method is not compress the PNG images. Question is "How to compress PNG images without losing bg transparency"
– Savas Adar
Nov 27 '18 at 14:43
Png does compress the image (try writing the data out manually, it’s even better the putting it through a zip stream), it’s just not as good as jpg
– MadProgrammer
Nov 27 '18 at 19:18
Possible duplicate of Convert an image to a 16bit color image
– MwcsMac
Nov 17 '18 at 1:45
Possible duplicate of Convert an image to a 16bit color image
– MwcsMac
Nov 17 '18 at 1:45
2
2
JPEG doesn't support transparency, instead, you need to use PNG
– MadProgrammer
Nov 17 '18 at 2:26
JPEG doesn't support transparency, instead, you need to use PNG
– MadProgrammer
Nov 17 '18 at 2:26
I am living same problem, @MadProgrammer We know jpeg doesn't support transparency but UIImagePNGRepresentation method is not compress the PNG images. Question is "How to compress PNG images without losing bg transparency"
– Savas Adar
Nov 27 '18 at 14:43
I am living same problem, @MadProgrammer We know jpeg doesn't support transparency but UIImagePNGRepresentation method is not compress the PNG images. Question is "How to compress PNG images without losing bg transparency"
– Savas Adar
Nov 27 '18 at 14:43
Png does compress the image (try writing the data out manually, it’s even better the putting it through a zip stream), it’s just not as good as jpg
– MadProgrammer
Nov 27 '18 at 19:18
Png does compress the image (try writing the data out manually, it’s even better the putting it through a zip stream), it’s just not as good as jpg
– MadProgrammer
Nov 27 '18 at 19:18
add a comment |
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Possible duplicate of Convert an image to a 16bit color image
– MwcsMac
Nov 17 '18 at 1:45
2
JPEG doesn't support transparency, instead, you need to use PNG
– MadProgrammer
Nov 17 '18 at 2:26
I am living same problem, @MadProgrammer We know jpeg doesn't support transparency but UIImagePNGRepresentation method is not compress the PNG images. Question is "How to compress PNG images without losing bg transparency"
– Savas Adar
Nov 27 '18 at 14:43
Png does compress the image (try writing the data out manually, it’s even better the putting it through a zip stream), it’s just not as good as jpg
– MadProgrammer
Nov 27 '18 at 19:18