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perf(invoke_ai_web_server): encode intermediate result previews as jpeg #2817

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Merged
merged 1 commit into from
Feb 26, 2023
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perf(invoke_ai_web_server): encode intermediate result previews as jpeg #2817

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9 changes: 5 additions & 4 deletions invokeai/backend/invoke_ai_web_server.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1062,7 +1062,7 @@ def image_progress(sample, step):
(width, height) = image.size
width *= 8
height *= 8
img_base64 = image_to_dataURL(image)
img_base64 = image_to_dataURL(image, image_format="JPEG")
self.socketio.emit(
"intermediateResult",
{
Expand Down Expand Up @@ -1714,13 +1714,14 @@ def dataURL_to_image(dataURL: str) -> ImageType:
return image


def image_to_dataURL(image: ImageType) -> str:
def image_to_dataURL(image: ImageType, image_format:str="PNG") -> str:
"""
Converts an image into a base64 image dataURL.
"""
buffered = io.BytesIO()
image.save(buffered, format="PNG")
image_base64 = "data:image/png;base64," + base64.b64encode(
image.save(buffered, format=image_format)
mime_type = Image.MIME.get(image_format.upper(), "image/" + image_format.lower())
image_base64 = f"data:{mime_type};base64," + base64.b64encode(
buffered.getvalue()
).decode("UTF-8")
return image_base64
Expand Down