ios - How to compress size of UIImage to a certain size (in KB) -


this question has answer here:

in app, have user select/take photo, goes method (standard stuff):

- (void)imagepickercontroller:(uiimagepickercontroller *)picker didfinishpickingmediawithinfo:(nsdictionary *)info

now, how can reduce image file size (i want reduced somewhere around 80-90 kb).

a bit crude:

uiimage *image = (uiimage *)info[uiimagepickercontrollereditedimage]; nsdata *data; (cgfloat quality = 1.0; cgfloat >= 0; cgfloat -= 0.05) {     data = uiimagejpegrepresentation(image,quality);     if (data.length < 90000)         break; }

probably quite cpu-intensive. there better ways find ideal quality more quickly.


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