[Digikam-users] How to stop "watermark" reducing the size of the pictures?

[cerp]

There seems to be a reduction of quality.

Why, what are you thinking of?

Best


Quoting HaJo Schatz <hajo at hajo.net>:

> Is there really a loss of quality or only a reduction of size?
>
> On Thursday, August 28, 2014, cerp <cerp at eeos.biz> wrote:
>
>> No, digikam still reduces the pictures from 4.8Mb to 1.8 Mb, with the
>> consequent loss of quality / details. It happens not only when I apply
>> watermark but any other batch tool.
>>
>> Quoting Jan Wolter <jan.wolter at uni-paderborn.de>:
>>
>> Yes, thats true. Does this settings have a positive impact to the quality
>>> of your edited pictures?
>>>
>>> On 08/28/2014 12:11 PM, cerp wrote:
>>>
>>>>
>>>> Dear Jan,
>>>>
>>>> I have set JPEG quality = 100 and chroma sub sampling = none, that
>>>> should be maximum quality correct?
>>>>
>>>>
>>>>
>>>> Quoting Jan Wolter <jan.wolter at uni-paderborn.de>:
>>>>
>>>> Hello,
>>>>>
>>>>> I guess that your images are generally (independent from the added
>>>>> watermark) not saved with maximal quality. Check your settings under menu
>>>>> Settings -> Configure digiKam -> Saving Images.
>>>>>
>>>>> Best regards,
>>>>> Jan
>>>>>
>>>>> On 08/28/2014 09:43 AM, cerp wrote:
>>>>>
>>>>>> Dear all,
>>>>>>
>>>>>> We use the watermark function to add the copyright in the bottom right
>>>>>> corner of the pictures.
>>>>>>
>>>>>> The pictures are taken using in camera jpeg generation, which normally
>>>>>> has very high quality.
>>>>>>
>>>>>> When we watermark in digikam, it reduces the size of the jpeg file
>>>>>> from approximately 4Mb to 1.8Mb with a considerable loss of quality. We
>>>>>> have tried setting all the parameters we could think, but without being
>>>>>> able to stop this behavior. What I would like is the original  
>>>>>> picture with
>>>>>> the watermark saved at the same resolution without additional  
>>>>>> compression
>>>>>> .... how do I achieve it?
>>>>>>
>>>>>> Thanks for your help.
>>>>>>
>>>>>> Regards
>>>>>>
>>>>>> Corrado & Rina
>>>>>>
>>>>>>
>>>>>> r
>>>>>>
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>>>>>>
>>>>>
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>>>>
>>>>
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>>
>>
>>
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>
>
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