Well yeah, you can turn any lossless format lossy by introducing an intermediate step that discards some amount of information. You can't practically turn a lossy format into a lossless format by introducing a lossless intermediate step.
Although, if you're purely speaking perceptually, magic like RAISR comes pretty close.
Well yeah, you can turn any lossless format lossy by introducing an intermediate step that discards some amount of information. You can't practically turn a lossy format into a lossless format by introducing a lossless intermediate step.
Although, if you're purely speaking perceptually, magic like RAISR comes pretty close.
pngquant does the lossy conversion, not the PNG format.