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@ -84,10 +84,15 @@ def blend_image(img, bgcolor='#ffffff'):
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overlay(img, nimg)
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return nimg
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def image_to_data(img, compression_quality=95, fmt='JPEG', png_compression_level=9, jpeg_optimized=True, jpeg_progressive=True):
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''' Serialize image to bytestring in the specified format.
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compression_quality is for JPEG and goes from 0 to 100.
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png_compression_level is for PNG and goes from 0-9 '''
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def image_to_data(img, compression_quality=95, fmt='JPEG', png_compression_level=9, jpeg_optimized=True, jpeg_progressive=False):
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'''
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Serialize image to bytestring in the specified format.
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:param compression_quality: is for JPEG and goes from 0 to 100. 100 being lowest compression, highest image quality
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:param png_compression_level: is for PNG and goes from 0-9. 9 being highest compression.
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:param jpeg_optimized: Turns on the 'optimize' option for libjpeg which losslessly reduce file size
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:param jpeg_progressive: Turns on the 'progressive scan' option for libjpeg which allows JPEG images to be downloaded in streaming fashion
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'''
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ba = QByteArray()
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buf = QBuffer(ba)
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buf.open(QBuffer.WriteOnly)
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