I'll look into that Linux option :) as for the save method, I used the show method on the object and it had a path in the temp directory. So I asked ChatGPT how the file could be on disk and it told me that the save method created it. If you're right then it's just another hallucination by the model. I use it to teach me, as I'm learning alone. Thanks for the replies 🙂 On Tuesday, February 14, 2023 at 5:49:45 PM UTC-3 Merlijn Wajer wrote:
> Hi, > > On 14/02/2023 21:16, Flávio. wrote: > > Thanks, i'm still trying to figure it out. It seems when the PIL image > > is saved, unfortunately it saves a temp file to disk. My goal is to not > > write to disk, because this application will read a lot of files and I > > want to spare my SSD. My code receives byte data from a Dart program (I > > checked it is correct). So far the py file looks like this but i'm not > > getting anything in return. > > At this point I maybe ought to reply off list, but you could also save > the images to a "tmpfs" on Linux if you don't want to deal with stdin > and have the images never hit the disk/ssd: > https://www.kernel.org/doc/html/v5.7/filesystems/tmpfs.html > > In any case - when you write that PIL 'saves a temp file to disk', what > lead you to that conclusion? The code below really shouldn't do that. > > Regards, > Merlijn > > > def main(): > > base64_image = sys.stdin.read() > > image_bytes = base64.b64decode(base64_image) > > with io.BytesIO(image_bytes) as input: > > pil_image = Image.open(input) > > with io.BytesIO() as output: > > pil_image.save(output, format='PNG', compress=0, > > compress_level=0) # using disk! > > output.seek(0) > > > > env = os.environ.copy() > > env['OMP_THREAD_LIMIT'] = '1' > > > > p = subprocess.Popen([tesseractPath, '-', '-','-l','por'], > > stdin=subprocess.PIPE, > > stdout=subprocess.PIPE, > > stderr=subprocess.PIPE, > > env=env) > > output, stderr = p.communicate(output.read()) > > stderr = stderr.decode('utf-8') > > > > if stderr: > > logger.warning('tesseract_baselines stderr: %s', stderr) > > else: > > sys.stdout(output.encode('utf-8').strip()) > > > > > > if __name__ == '__main__': > > main() > > > > > > On Tuesday, February 14, 2023 at 4:11:13 PM UTC-3 Merlijn Wajer wrote: > > > > > > Hi, > > > > On 14/02/2023 19:10, Flávio. wrote: > > > Sorry, how can I do that? I'm trying to send image binary data, > > not a > > > path. The goal is to not write a file to disk and use only > > memory. Could > > > you please write a code that sends the data (binary) to the stdin of > > > tesseract? it can be in Python, Dart or Java :( I've tried > > ChatGPT but > > > it is wrong and gets lost > > > > Normally I'd say 'left as an exercises to the reader' but I so > > happen to > > have a snippet around that ought to give you a general idea. > > > > This uses io.BytesIO in Python 3 to save the image (stream) to, it > > contains an uncompressed PNG (compression will just slow things down). > > It assumes that the variable "pil_image" contains a PIL.Image object. > > > > The code to use just one core in Tesseract is of course entirely > > optional. I didn't *test* this to work (I modified it a bit - it works > > in another setting), but it should work in theory: > > > > > with io.BytesIO() as output: > > > pil_image.save(output, format='PNG', compress=0, compress_level=0) > > > output.seek(0) > > > > > > # Let's just use one core in tesseract > > > env = os.environ.copy() > > > env['OMP_THREAD_LIMIT'] = '1' > > > > > > p = subprocess.Popen(['tesseract', '-', '-'], > > > stdin=subprocess.PIPE, > > > stdout=subprocess.PIPE, > > > stderr=subprocess.PIPE, > > > env=env) > > > output, stderr = p.communicate(output.read()) > > > stderr = stderr.decode('utf-8') > > > > > > if stderr: > > > logger.warning('tesseract_baselines stderr: %s', stderr) > > > > > > Regards, > > Merlijn > > > > -- > > You received this message because you are subscribed to the Google > > Groups "tesseract-ocr" group. > > To unsubscribe from this group and stop receiving emails from it, send > > an email to tesseract-oc...@googlegroups.com > > <mailto:tesseract-oc...@googlegroups.com>. > > To view this discussion on the web visit > > > https://groups.google.com/d/msgid/tesseract-ocr/ebd9d42d-244c-4a6b-8ab8-c1efd87db501n%40googlegroups.com > > > < > https://groups.google.com/d/msgid/tesseract-ocr/ebd9d42d-244c-4a6b-8ab8-c1efd87db501n%40googlegroups.com?utm_medium=email&utm_source=footer > >. > -- You received this message because you are subscribed to the Google Groups "tesseract-ocr" group. To unsubscribe from this group and stop receiving emails from it, send an email to tesseract-ocr+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/tesseract-ocr/14c7e227-7f84-4e0d-91c6-f5f257a07cd6n%40googlegroups.com.
