Is there any way to reduce the size of a jpg image by...

[Edmilson Bringel]

Hi everybody,

I am looking for a way to reduce an image size in JPG format ... (I know how to load an image from filesystem and how to get/set the image bytearray and other attributes from image object but I don't know how to manipulate its final size to get/rewrite a new reduced file - I would like to reduce jpeg files from 64K (or any size) to a new file with 18K size)...
I was thinking if the CgJPEGFileFormat or its superclass implements any method to do that (maybe compress:yComp:cbComp:crComp or somethink like that... but I did not found information about that)...

Any tip will be very appreciated.

Thanks

Edmilson Bringel

[Edmilson Bringel]

Sorry,

I mean: I did not "find" any information about that method.

Thanks again!

Edi

[PhotonDemon]

Hi Edmilson,

I has been a long time since I played with graphic images but hopefully this will point you in the right direction.

#CgDeviceIndependentImage>scaledTo: will return a new image scaled to the given extent.

I think if you use something like (CgJPEGFileFormat new) loadFromFile: picturePath, you will get a #CgDeviceIndependentImage that you can scale.

Lou