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Amgueddfa Cymru

Medi 2011

Looking at Buildings

Postiwyd gan Sian Lile-Pastore ar 16 Medi 2011

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On Wednesday Ysgol Gynradd Gymraeg Evan James took part in the art activity that I offer to schools called 'Looking at Buildings'.

The pupils have a look at the buildings in the museum and make sketches of them, before returning to the activity space to create a 3d model. Here are some pictures of the wonderful work made.

If your school would like to take part in something similar, have a look here for more details.

Quilt Club

Postiwyd gan Sian Lile-Pastore ar 16 Medi 2011

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I love quilt club, I really do. And if any of you would like to come along then I'm sure you will love it too!

It's a friendly, informal group and we get together and sew quilts! Quilter, and all round wonderful person Samantha Jenkins is on hand to help out if you get stuck or to help you get started if you have never quilted before. We meet every two months on a saturday morning at 11am until 12.30pm, the next meeting is on November 5th and is open to all - but please book your place by phoning 029 2057 3424.

Here are some pictures from recent meetings... I know there are more somewhere in the depths of my computer, so I'll have a hunt for those too.

Croeso!

Postiwyd gan Danielle Cowell ar 15 Medi 2011

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Athro'r Ardd

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map o ysggolion

Croeso i’r 2,883 o ddisgyblion sy’n cymryd rhan yn ymchwiliad Bylbiau’r Gwanwyn i Ysgolion eleni!

Dwi wedi cyffroi’n lân achos eleni mae gyda ni ddisgyblion o Gymru, Lloegr a’r Alban yn cymryd rhan! Mae’r holl ysgolion ar y map.

Dros yr wythnosau nesaf, bydda i a fy ffrindiau gwyrdd yn brysur yn paratoi’r bylbiau a’r potiau i’w hanfon i’r ysgolion. Yna bydd pob ysgol yn plannu ar 2 Hydref yng Nghymru a Lloegr a 26 Hydref yn yr Alban.

Athro’r Ardd

www.amgueddfacymru.ac.uk/cy/scan/bylbiau/

Hyrwyddwr Hinsawdd yn ymweld � Sain Ffagan!

Postiwyd gan Danielle Cowell ar 15 Medi 2011

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Bronwen a teulu Punter o Glunderwen ger Arberth wnaeth adduned i: gerdded a beicio yn amlach, treulio munud yn llai yn y gawod a throi'r thermostat i lawr 1 gradd.

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Ffion Isaacs a'i thad-cu Ivor o Gaerllion

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Adam a Josh o Solihull

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Bronwen gyda Arwel ac Ellis o Milton Keynes.

Mae Bronwen Davies o Lyn Ebwy yn un o Hyrwyddwyr Newid Hinsawdd Llywodraeth Cymru.

Treuliodd Bronwen, sy’n 15 oed, y diwrnod yn y Tŷ Gwyrdd yn Sain Ffagan: Amgueddfa Werin Cymru yn siarad ag aelodau’r cyhoedd am sut i addunedu i leihau eu hôl troed carbon.

Siaradodd â phobol o bob oed a mwynhau trafod gyda theuluoedd lle gallai rhieni a phlant gynllunio eu camau nesaf gyda’u gilydd. Mae hi wedi bod yn brysur iawn dros yr wythnosau diwethaf yn helpu pobl i ddeall y newid yn ein hinsawdd.

Penodwyd Bronwen yn Hyrwyddwr Newid Hinsawdd ym mis Ionawr wedi iddi ennill cystadleuaeth i ganfod chwe person ifanc allai ddefnyddio eu dylanwad i berswadio eu ffrindiau, eu teuluoedd a’u cymunedau i gyfrannu at helpu Cymru i leihau ei hôl troed carbon.

Ar 1 Hydref gallwch chi gyfarfod Hyrwyddwr Newid Hinsawdd Caerdydd, Tom Bevan, sy’n 16. Galwch draw i Tŷ Gwyrdd i gyfarfod Tom, addunedu, a dysgu beth allwch chi ei wneud i leihau eich ôl troed carbon.

Dilynwch hanes Hyrwyddwyr Newid Hinsawdd Cymru yn: http://tinyurl.com/3gu535d

Virtually cleaning a 18th Century painting

Postiwyd gan Graham Davies ar 7 Medi 2011

[delwedd: Golygfa o'r Palazzo Loredan dell'Ambasciatore ar y Gamlas Fawr yn Fenis [cyn glanhau]]

Golygfa o'r Palazzo Loredan dell'Ambasciatore ar y Gamlas Fawr yn Fenis [cyn glanhau]

[delwedd: Golygfa o'r Palazzo Loredan dell'Ambasciatore ar y Gamlas Fawr yn Fenis [wedi glanhau]]

Golygfa o'r Palazzo Loredan dell'Ambasciatore ar y Gamlas Fawr yn Fenis [wedi glanhau]

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Graham Davies, Online Curator, Amgeddfa Cymru - National Museum Wales

When a member of the Art department approached me to ask if I could feature two views of the same painting online — one version covered in dirt and yellowed varnish (as the painting was when it came into the Museum), and the other version showing hidden detail and crisp colours (after being cleaned by Museum conservators) — I realised it would make a perfect interactive if you could use your mouse to virtually 'clean' the dirty canvas to reveal the clean version underneath.

Guardi's view of the Grand Canal, Venice

The painting in question is Francsesco Guardi's View of the Palazzo Loredan dell'Ambasciatore on the Grand Canal, Venice, painted around 1775-85.

Acquired by Amgueddfa Cymru in 2011, this painting is an important acquisition as Guardi's Venetian views are regarded as highly significant in the history of landscape painting.

You clean the painting

To make the most out of this dramatic before and after view, I needed to work out a way of 'virtually' cleaning the painting online by dragging a mouse over the dirty image to reveal the original details and colours previously hidden underneath the dirt and old varnish.

Reinvent the wheel?

I wanted something that allowed the mouse to act as an eraser; allowing one image to be rubbed out to reveal a secondary image underneath. A hunt around the internet brought up the required functionality already created by by Jonathan Nicol (www.f6design.com/journal).

The next step was to acquire high resolution copies of both dirty (before) and cleaned (after) digital images of the artwork from the Photography department.

Precisely aligning two slightly different angled photographs of the same picture

When I opened these digital images in Photohshop it became apparent that variations in the perspective, and distance of the photographic captures resulted in two images that did not precisely match up once overlaid on top of one another.

After an hour of miniscule adjustments using the image warp feature on Photoshop using the images as separate layers within Photoshop (one set at 50% opacity), I eventually achieved a precise overlaid match.

I abandoned trying to do this at 100% view as the image was so large and the time lag in processing too great to view the results (even for my G5 at 2.44Gz and 8GB RAM). I had to settle for a 25% view that filled my Apple 32" screen)

Once I had a satisfactory matched up and aligned the 'dirty' layer on top of the 'clean' layer, I could create the two corresponding TIFF images to incorporate into the Flash file as a basis for the interactive.

After a bit of tweaking, fiddling, and constant testing, I managed to create a simple interactive, allowing you to use your mouse to erase the dirty image, revealing the clean one underneath.

Exploring the detail.

I then decided to repeat this process to create several versions, all using crops of the high resolution images to show close up details of the painting.

Areas of particular interest I choose to separate out were people rowing a goldola, the architectural detail of the buildings, and the detail of the sky and clouds where much original detail had been almost totally obscured by years of grime, dirt and previous 'touch-ups' to the painting. The clean version revealed original intricate details and brushwork.

Future applications for Museum archives and collections

I am hoping this functionality can be utilised for other online images of the collections in the future. Ideas I have at the moment are to reveal hidden under-drawings only visible under x-ray light — as in the example of Richard Wilson's Dolbadarn Castle (NMW A 72), which has been painted over a portrait of a woman, and Landscape with Banditti around a Tent (NMW A 69) which he painted over a Venetian-style reclining nude.

Additional ideas include viewing a landscape or post industrial townscape that can be erased to reveal a historical image underneath...

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    [delwedd: Amgueddfa Genedlaethol Caerdydd]

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    [delwedd: Sain Ffagan]

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    [delwedd: Big Pit]

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    [delwedd: Amgueddfa Wlân Cymru]

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    [delwedd: Amgueddfa Lleng Rufeinig Cymru]

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    [delwedd: Amgueddfa Lechi Cymru]

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    [delwedd: Amgueddfa Genedlaethol y Glannau]

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